P. Tripp and M. L. Hair, An infrared study of the reaction of octadecyltrichlorosilane with silica, Langmuir, vol.8, issue.4, p.1120, 1992.
DOI : 10.1021/la00040a018

T. Zhuravlev, The surface chemistry of amorphous silica. Zhuravlev model, Colloïds Surfaces A, 2000.

. Despas, Analyse des propriétés de sorption de la silice vis-à-vis des bases et des espèces cationiques par des méthodes diélectriques et électrochimiques, Thèse de l'Université Henri Poincaré, 1998.

M. Kondo, K. Igarashi, and . Nakai, The properties of silica surfaces treated at high pH, Colloids and Surfaces, vol.63, issue.1-2
DOI : 10.1016/0166-6622(92)80066-B

L. Hair and W. Hertl, Adsorption on hydroxylated silica surfaces, The Journal of Physical Chemistry, vol.73, issue.12, pp.73-4269, 1969.
DOI : 10.1021/j100846a039

I. Titova and L. S. Kosheleva, IR spectroscopic study of silica???triethylamine interaction, Colloids and Surfaces, vol.63, issue.1-2
DOI : 10.1016/0166-6622(92)80075-D

J. Tiffreau, P. Lutzenkirchen, and . Behra, Modeling the adsorption of mercury(II) on (hydr)oxides I. Amorphous iron oxide and ?-quartz, J. Colloid Interf. Sci, issue.1, pp.172-82, 1995.

J. Walcarius and J. Devoy, Bessiere Electrochemical Recognition of Selective Mercury Adsorption on Minerals, Environ. Sci. Technol, issue.23, pp.33-4278, 1999.

P. Blitz, R. S. Murthy, and D. E. Leyden, Ammonia-catalyzed silylation reactions of Cab-O-Sil with methoxymethylsilanes, Journal of the American Chemical Society, vol.109, issue.23, pp.109-7141, 1987.
DOI : 10.1021/ja00257a039

S. Zhao and G. Q. Lu, Modification of MCM-41 by Surface Silylation with Trimethylchlorosilane and Adsorption Study, The Journal of Physical Chemistry B, vol.102, issue.9, pp.102-1556, 1998.
DOI : 10.1021/jp972788m

J. C. Gonzalez-benito, A. J. Cabanelas, M. R. Aznar, J. Vigil, J. Bravo et al., Surface characterization of silanized glass fibers by labeling with environmental sensitive fluorophores, J. Appl. Polym. Sci, issue.2, pp.62-375, 1996.

A. Ramos, M. H. Gil, E. Schacht, G. Matthys, W. Mondelaers et al., Physical and chemical characterization of some silicas and silica derivatives, Powder Technol, issue.1, pp.99-79, 1998.

L. Xu, H. Sun, L. Li, G. Zhang, X. Guo et al., Hydrolysis and silanization of the hydrosilicon surface of freshly prepared porous silicon by an amine catalytic reaction, New Journal of Chemistry, vol.27, issue.2
DOI : 10.1039/b204359a

. Carteret, Etude par spectroscopie dans le proche infrarouge, et modélisation des structures de surface et de l'hydratation de silices amorphes, 1999.

E. Maciel and D. W. Sindorf, Carbon-13 NMR spectra of cellulose polymorphs, J. Am. Chem. Soc, issue.9, pp.102-7606, 1980.

W. Sindorf and G. E. Maciel, Silicon-29 NMR study of dehydrated/rehydrated silica gel using cross polarization and magic-angle spinning, J. Am.Chem. Soc, issue.6, pp.105-1487, 1983.

W. Sindorf and G. E. Maciel, Cross-polarization magic-angle-spinning silicon-29 nuclear magnetic resonance study of silica gel using trimethylsilane bonding as a probe of surface geometry and reactivity, The Journal of Physical Chemistry, vol.86, issue.26, pp.86-5208, 1982.
DOI : 10.1021/j100223a029

W. Sindorf and G. E. Maciel, Silicon-29 nuclear magnetic resonance study of hydroxyl sites on dehydrated silica gel surfaces, using silylation as a probe, The Journal of Physical Chemistry, vol.87, issue.26, pp.87-5516, 1983.
DOI : 10.1021/j150644a041

F. Vansant, P. Van-der-voort, and K. C. Vrancken, Chapter 5: The distribution of the silanol types and their desorption energies, E.S.B.V, p.93, 1995.

. De-monredon, Interaction organosilane / silice de précipitation du milieu lydro-alcoolique au milieu aqueux , Thèse de l, 2004.

. Garin, Caractérisation par RMN de l'interaction matrice-élastomère-particules de silice en présence d'agent de couplage, Thèse de l, 1999.

L. Léonardelli, C. Facchini, P. Fretigny, A. P. Tougne, and . Legrand, Silicon-29 NMR study of silica, Journal of the American Chemical Society, vol.114, issue.16, pp.114-6412, 1992.
DOI : 10.1021/ja00042a018

W. Rutland and R. M. Pashley, The charging properties of monodisperse colloidal silica in symmetrical quaternary ammonium ion solutions, Journal of Colloid and Interface Science, vol.130, issue.2, pp.130-448, 1989.
DOI : 10.1016/0021-9797(89)90122-7

Z. Huang, T. Yan, and . Gu, Mixed adsorption of cationic and anionic surfactants from aqueous solution on silica gel, Colloid. Surfaces, pp.36-353, 1989.

T. Kittaka and . Morimoto, Surface conductance of silica in electrolyte solutions, Journal of Colloid and Interface Science, vol.55, issue.2
DOI : 10.1016/0021-9797(76)90053-9

H. Bolt, Determination of the Charge Density of Silica Sols, The Journal of Physical Chemistry, vol.61, issue.9, p.611166, 1957.
DOI : 10.1021/j150555a007

. Sonnefeld, Determination of Surface Charge Density Constants for Spherical Silica Particles Using a Linear Transformation, Journal of Colloid and Interface Science, vol.183, issue.2, p.597, 1996.
DOI : 10.1006/jcis.1996.0583

J. Hunter, Zeta Potentiel in Colloid Science, 1988.

K. Iler, The Chemistry of silica, 1979.

J. Walcarius and . Bessiere, Silica-modified carbon paste electrode for copper determination in ammoniacal medium, Electroanalysis, vol.196, issue.9, p.707, 1997.
DOI : 10.1080/00032719508004027

C. Walcarius, J. Despas, and . Bessiere, Silica-modified carbon paste electrode for copper determination in ammoniacal medium, Electroanalysis, vol.196, issue.9, pp.1-3, 1999.
DOI : 10.1080/00032719508004027

J. Walcarius and . Bessiere, Electrochemistry with Mesoporous Silica:?? Selective Mercury(II) Binding, Chemistry of Materials, vol.11, issue.11, p.3009, 1999.
DOI : 10.1021/cm990410q

H. R. Schindler and . Kamber, Acidity of silanol groups, Helv. Chim. Acta, issue.7, pp.51-1781, 1968.

P. Zhdanov, L. S. Kosheleva, and T. I. Titova, IR study of hydroxylated silica, IR study of hydroxylated silica, p.960, 1987.
DOI : 10.1021/la00078a014

. Sonnefeld, An Analytic Expression for the Particle Size Dependence of the Surface Acidity of Colloidal Silica, Journal of Colloid and Interface Science, vol.155, issue.1, pp.155-191, 1993.
DOI : 10.1006/jcis.1993.1025

A. Etienne and . Walcarius, Analytical investigation of the chemical reactivity and stability of aminopropyl-grafted silica in aqueous medium, Talanta, vol.59, issue.6, pp.59-1173, 2003.
DOI : 10.1016/S0039-9140(03)00024-9

B. Alexander, W. M. Heston, and R. K. Iler, The Solubility of Amorphous Silica in Water, The Journal of Physical Chemistry, vol.58, issue.6
DOI : 10.1021/j150516a002

. Dietzel, Dissolution of silicates and the stability of polysilicic acid, Geochimica et Cosmochimica Acta, vol.64, issue.19
DOI : 10.1016/S0016-7037(00)00426-9

A. Despas, J. Walcarius, and . Bessière, In situ investigation of the ionization of silica in aqueous ammonia by using a high frequency dielectric method, Talanta, issue.2, pp.45-357, 1997.

S. Kantipuly, A. Katragadda, H. D. Chow, and . Gesser, Chelating polymers and related supports for separation and preconcentration of trace metals, Talanta, vol.37, issue.5, pp.37-491, 1990.
DOI : 10.1016/0039-9140(90)80075-Q

F. Vansant, P. Van-der-voort, and K. C. Vrancken, Chapter 9: Modification with silicon compounds: Mechanistic studies, E.S.B.V, p.79, 1995.

B. J. Stein, R. C. Melde, and . Schroden, Hybrid inorganic-organic meso-porous silicates-nanoscopic reactors coming of age, Adv. Mater, issue.19, pp.12-1403, 2000.

. Walcarius, Analytical Applications of Silica-Modified Electrodes -A Comprehensive Review, Electroanalysis, vol.14, issue.39, pp.10-1217, 1998.
DOI : 10.1557/PROC-180-961

M. Price, J. H. Clark, and D. J. Macquarrie, Modified silicas for clean technology, Journal of the Chemical Society, Dalton Transactions, issue.2, p.101, 2000.
DOI : 10.1039/a905457j

F. Sanchez and . Ribot, Proceedings of the first European workshop on hybrid organic-inorganic materials, New. J. Chem, pp.18-1007, 1994.

J. Brinker and G. W. Scherer, Sol-gel science: The physics and chemistry of sol-gel processing, 1990.

F. Vansant, P. Van-der-voort, and K. C. Vrancken, Quantification of silanol number, in Characterization and chemical modification of the silica surface, S.B.V, vol.4, p.79, 1995.

K. Jal, S. Patel, and B. K. Mishra, Chemical modification of silica surface by immobilization of functional groups for extractive concentration of metal ions, Talanta, vol.62, issue.5, p.1005, 2004.
DOI : 10.1016/j.talanta.2003.10.028

T. J. Mercier and . Pinnavaia, Access in mesoporous materials: Advantages of a uniform pore structure in the design of a heavy metal ion adsorbent for environmental remediation, Advanced Materials, vol.3, issue.6
DOI : 10.1002/bbpc.199500076

K. Unger, Porous Silica, its properties and use as a support in column liquid chromatography, 1979.

L. Hench and J. K. West, The sol-gel process, Chemical Reviews, vol.90, issue.1, pp.90-123, 1990.
DOI : 10.1021/cr00099a003

E. Yoldas, Preparation of glasses and ceramics from metal-organic compounds, J. Mater

A. Yamane, T. Shinji, and . Sakaino, Preparation of a gel from metal alkoxide and its properties as a precursor of oxide glass, Journal of Materials Science, vol.72, issue.4, pp.13-865, 1978.
DOI : 10.1007/BF00570525

R. Kessel and S. Granick, Formation and characterization of a highly ordered and well-anchored alkylsilane monolayer on mica by self-assembly, Langmuir, vol.7, issue.3, p.532, 1991.
DOI : 10.1021/la00051a020

W. Daniels, J. Sefcik, L. F. Francis, and A. V. Mc-cormick, Reactions of a Trifunctional Silane Coupling Agent in the Presence of Colloidal Silica Sols in Polar Media, Journal of Colloid and Interface Science, vol.219, issue.2, p.351, 1999.
DOI : 10.1006/jcis.1999.6497

E. Rankin, J. Sefcik, and A. V. Mc-cormick, Similarities in the Hydrolysis Pseudoequilibrium Behavior of Methyl-Substituted Ethoxysilanes, Industrial & Engineering Chemistry Research, vol.38, issue.9, pp.38-3191, 1999.
DOI : 10.1021/ie990027v

J. Brinker, K. D. Keefer, D. W. Schaefer, R. A. Assink, B. D. Kay et al., Sol-gel transition in simple silicates II, Journal of Non-Crystalline Solids, vol.63, issue.1-2, p.45, 1984.
DOI : 10.1016/0022-3093(84)90385-5

J. Brinker, K. D. Keefer, D. W. Schaefer, and C. S. Ashley, -gel transition in simple silicates, J

P. Pathmamanoharan, D. M. Wijkens, A. P. Grove, and . Philipse, Paramagnetic Silica Particles:?? Synthesis and Grafting of a Silane Coupling Agent Containing Nickel Ions onto Colloidal Silica Particles, Langmuir, vol.12, issue.18, pp.12-4372, 1996.
DOI : 10.1021/la960350s

J. Joris, J. K. Aspila, and C. L. Chakrabarti, On the mechanism of decomposition of dithiocarbamates, The Journal of Physical Chemistry, vol.74, issue.4, pp.74-860, 1970.
DOI : 10.1021/j100699a033

I. Aspila, C. L. Chakrabarti, and V. S. Sastri, Substituent effects on acid dissociation constants of N,N-substituted dithiocarbamic acids, Anal. Chem, pp.45-363, 1973.

N. A. Humeres, M. M. Debacher, J. D. De-sierra, A. Franco, and . Schutz, Mechanisms of Acid Decomposition of Dithiocarbamates. 1. Alkyl Dithiocarbamates, The Journal of Organic Chemistry, vol.63, issue.5, pp.63-1598, 1998.
DOI : 10.1021/jo971869b

N. A. Humeres, M. M. Debacher, and . De-sierra, Mechanisms of Acid Decomposition of Dithiocarbamates. 2. Efficiency of the Intramolecular General Acid Catalysis, The Journal of Organic Chemistry, vol.64, issue.6, pp.64-1807, 1999.
DOI : 10.1021/jo981382i

I. Garcia and E. Humeres, Mechanisms of Acid Decomposition of Dithiocarbamates

J. Halls, The properties of dithiocarbamates, Mikrochimica Acta, vol.1, p.62, 1969.

F. Yeh, S. Chyueh, W. S. Chen, J. D. Fang, and C. Y. Liu, Application of dithiocarbamate resinmetal complexes as stationary phases in gas chromatography, J. of Chromatogr, pp.630-275, 1993.

D. Thorn and R. A. Ludwig, The dithiocarbamates and related compounds, 1962.

. Hulanicki, Complexation reactions of dithiocarbamates, Talanta, vol.14, issue.12, p.1371, 1967.
DOI : 10.1016/0039-9140(67)80159-0

M. Smith, A. E. Martell, and R. J. Motekaitis, NIST Critically Selected Stability Constants of Metal Complexes Database, version 6.0, NIST Standard Reference Data No, 2001.

C. Ronconi, P. Marzano, M. Zanello, G. Corsini, C. Miolo et al., Gold(III) Dithiocarbamate Derivatives for the Treatment of Cancer: Solution Chemistry, DNA Binding, and Hemolytic Properties, pp.49-1648, 2006.

L. Alverdi, C. Giovagnini, R. Marzano, F. Seraglia, S. Bettio et al., Characterization studies and cytotoxicity assays of Pt(II) and Pd(II) dithiocarbamate complexes by means of FT-IR, NMR spectroscopy and mass spectrometry, Journal of Inorganic Biochemistry, vol.98, issue.6, pp.98-1117, 2004.
DOI : 10.1016/j.jinorgbio.2004.03.011

. Hulanicki, Complexation reactions of dithiocarbamates, Talanta, vol.14, issue.12, p.1371, 1967.
DOI : 10.1016/0039-9140(67)80159-0

K. Shijo, N. Takada, and . Uehara, Determination of metal ions by high-performance liquid chromatographic separation of their pyrrolidinedithiocarbamate, Ana. Sc, issue.9, p.315, 1993.

J. M. Gonzalez-rodriguez, J. M. Castro-romero, J. Fernandez-solis, H. M. Perez-iglesias, . Seco et al., Simultaneous Determination of Copper, Cobalt and Nickel by Hplc and Solvent Extraction With Diethyldithiocarbamic Acid as Reagent, Analytical Letters, vol.117, issue.7, pp.27-1399, 1994.
DOI : 10.1039/an9921700977

N. King and J. S. Fritz, Determination of cobalt, copper, mercury, and nickel as bis(2-hydroxyethyl)dithiocarbamate complexes by high-performance liquid chromatography, Analytical Chemistry, vol.59, issue.5, pp.59-703, 1987.
DOI : 10.1021/ac00132a005

A. Nickson, S. J. Hill, and P. J. Worsfold, Solid phase techniques for the préconcentration of trace metals from natural waters, Analytical Proceedings Including Analytical Communication, pp.32-387, 1995.

J. Newman, A. T. Voelkel, and D. R. Macfarlane, Analysis of Fe, Cu, Ni and Co in fluoride glasses and their precursors, Journal of Non-Crystalline Solids, vol.184, pp.184-324, 1995.
DOI : 10.1016/0022-3093(94)00636-9

M. Narin and . Soylak, cobalt Co(II) and lead Pb(II) ions in natural waters, table salts, tea and urine sample as pyrrolidine dithiocarbamate chelates by membrane filtration-flame atomic absorption spectrometry combination, cadmium Cd(II), copper Cu(II), pp.493-205, 2003.

K. Sekhar, S. N. Chary, K. C. Tirumula, and V. , Aparna, Determination of trace metals in sea water by ICP-MS after matrix separation, Acta Chim Slov, pp.50-409, 2003.

K. Roy, A. S. Rawat, and P. K. Rai, Synthesis, characterisation and evaluation of polydithiocarbamate resin supported on macroreticular styrene???divinylbenzene copolymer for the removal of trace and heavy metal ions, Talanta, vol.59, issue.2, pp.59-239, 2003.
DOI : 10.1016/S0039-9140(02)00497-6

K. Denizli, Y. Kesenci, E. Arica, and . Piskin, Dithiocarbamates-incorpored monosize polystyrene microspheres for selective removal of mercury ions, React Funct Polym, pp.44-235, 2000.

Y. Mcclain and . Hsieh, Synthesis of polystyrene-supported dithiocarbamates and their complexation with metal ions, Journal of Applied Polymer Science, vol.59, issue.1, pp.92-218, 2004.
DOI : 10.1515/REVAC.1985.8.1-2.5

A. Tiwari and . Bajpai, Metal ion extraction by dithiocarbamate function supported on polyacrylamide, Reactive and Functional Polymers, vol.64, issue.1, pp.64-111, 2005.
DOI : 10.1016/j.reactfunctpolym.2005.02.011

E. Say, A. Birlik, A. Denizli, and . Ersoz, Removal of heavy metal ions by dithiocarbamate-anchored polymer/organosmectite composites, Applied Clay Science, vol.31, issue.3-4, pp.31-298, 2006.
DOI : 10.1016/j.clay.2005.10.006

D. C. Emteborg, M. Baxter, and W. Sharp, Evaluation, mechanism and application of solid-phase extraction using a dithiocarbamate resin for the sampling and determination of mercury species in humic-rich natural waters, The Analyst, vol.120, issue.1, p.69, 1995.
DOI : 10.1039/an9952000069

F. Yeh, S. D. Chyueh, W. Chen, J. D. Fang, and C. Y. Liu, Application of dithiocarbamate resin-metal complexes as stationary phases in gas chromatography, J. Chromatogr, pp.630-275, 1993.

W. Trochimczuk and B. N. Kolarz, Synthesis and chelating properties of resins with methylthiourea, guanylthiourea and dithiocarbamate groups, European Polymer Journal, vol.36, issue.11, 2000.
DOI : 10.1016/S0014-3057(00)00007-0

F. Dingman, K. M. Gloss, E. A. Milano, and S. Siggia, Concentration of heavy metals by complexation on dithiocarbamate resins, Analytical Chemistry, vol.46, issue.6, pp.46-774, 1974.
DOI : 10.1021/ac60342a034

R. M. Horvath and . Barnes, Characterization of functional group complexation of a poly(dithiocarbamate) chelating resin, Analytical Chemistry, vol.58, issue.4, pp.58-725, 1986.
DOI : 10.1021/ac00295a015

K. Jal, S. Patel, and B. K. Mishra, Chemical modification of silica surface by immobilization of functional groups for extractive concentration of metal ions, Talanta, vol.62, issue.5, pp.62-1005, 2004.
DOI : 10.1016/j.talanta.2003.10.028

E. Leyden and G. H. , Preconcentration of trace metals using chelating groups immobilized via silylation, Analytical Chemistry, vol.47, issue.9, pp.47-1612, 1975.
DOI : 10.1021/ac60359a056

A. Venkatesan, T. G. Srinivasan, and P. R. Vasudeva-rao, Cobalt-extraction on dithiocarbamate grafted on silica gel surface, Colloid surface A, pp.180-277, 2001.

J. G. Espinola, J. M. De-freitas, S. F. De-oliveira, and C. Airoldi, Immobilized dithiocarbamate groups on silica : chemisorption of some cations from ethanolic solution, Colloid surface A, 1994, 87, 33. 23 M. E. Mahmoud, Selective solid extraction of mercury(II) by silica gel-immobilized-dithiocarbamate derivatives, Anal. Chim. Acta, pp.398-297, 1999.

M. E. Mahmoud, M. M. El-essawi, E. M. Fathallah, K. A. Venkatesan, T. G. Srinivasan et al., Characterization of surface modification thermal stability, and metal selectivity properties of silica gel phases-immobilized dithiocarbamate derivatives Removal of complexed mercury by dithiocarbamate grafted on mesoporous silica Removal of complexed mercury from aqueoys solutions using dithiocarbamate grafted on silica gel Analysis of vanillylmandelic acid, homovanillic acid and 5-hydroxyindoleacetic acid in human urine by high-performance liquid chromatography and fluorometry, J Chromatogr. & Related Technologies J. Radioanal. Nucl. Ch. Sep. Sci. Technol. J.P.M. Wielders, C.J.K. Mink J. Chromatogr, issue.2, pp.310-379, 1417.

S. J. Joris, K. I. Aspila, and C. L. Chakrabarti, Decomposition of monoalkyl dithiocarbamates, Analytical Chemistry, vol.42, issue.6, pp.42-647, 1970.
DOI : 10.1021/ac60288a004

N. A. Humeres, M. M. Debacher, S. De, J. D. Sierra, A. Franco et al., Mechanisms of acid decomposition of dithiocarbamates. 1. Alkyldithiocarbamates, J. Org. Chem, pp.63-1598, 1998.

. Goubert-renaudin, Synthèse, Caractérisation et réactivité en milieu aqueux de matériaux à base de silice fonctionnalisée par des ligands dithiocarbamate et cyclame, Thèse de l'université Henri Poincaré, 2007.

M. Walcarius, J. Etienne, and . Bessiere, Rate of Access to the Binding Sites in Organically Modified Silicates. 1. Amorphous Silica Gels Grafted with Amine or Thiol Groups, Chemistry of Materials, vol.14, issue.6, pp.14-2757, 2002.
DOI : 10.1021/cm021117k

C. Walcarius, S. Delacote, and . Sayen, Electrochemical probing of mass transfer rates in mesoporous silicabased organic-inorganic hybrids, Electrochim Acta, pp.49-3775, 2004.

M. Walcarius, C. Etienne, and . Delacote, Uptake of inorganic HgII by organically modified silicates: influence of pH and chloride concentration on the binding pathways and electrochemical monitoring of the processes, Sources : Internet et Quid, p.35, 2004.
DOI : 10.1016/j.aca.2003.11.055

. Désorbées, . Support, and . Éluées, Le caractère plus apolaire de la phase mobile favorisera donc la désorption et l

. Le-complexant-diéthylammonium-de-diéthyldithiocarbamate, ADDTC) a une masse molaire de 222,42 g.mol -1 et une pureté 99%

. Les-solutions-d, ADDTC sont préparées par la dispersion d'une masse précise d'ADDTC dans du méthanol. La concentration en ADDTC des solutions mères est de 10 -2 mol

. Goubert-renaudin, Les différents spectres ainsi que leurs déplacements chimiques sont présentés dans l'annexe III, p.278

. Protocole-pour-obtenir-un-litre-d-'urine-artificielle, Soit 20g d'urée, 2g de créatinine, 10 g de chlorure de sodium, 1,7 g de sulfate de potassium, 1,2g de sulfate de magnésium hepta hydraté, pp.3-5

. Dans-un-réacteur-fermé, une masse de silice préalablement pesée (25mg) a été dispersée dans une solution aqueuse (10 mL) contenant une concentration initiale connue en espèces métalliques. Le batch a été mis sous agitation magnétique

K. Mg-de-silice, II est dispersée dans une solution de 40 mL dopée en Ni et Co à des concentrations équimolaires connues Après deux heures en solution, le solide est filtré, séché est mis sous étuve puis sous vide. On obtient ainsi un solide dopé coloré (l'intensité de la coloration est fonction des quantités séquestrées sur le support)

. Dans-notre-cas-le-solide, est dispersé dans une solution de 6 mL dont 5mL d'HNO 3 suprapur 65% (VWR-Merck) et 1 mL H 2 O 2 20 % (Aldrich) Attendre quelques minutes avant de reboucher le réacteur, la pré-minéralisation évite les risques d'explosion. On charge le carroussel puis ce dernier est disposer dans le four micro-ondes. Ensuite un programme est sélectionné. Une puissance de 1200 watt est utilisée, une rampe de 15 minutes de montée en température puis un palier de 15 minutes de la température choisie (100

L. Qui-nous-permettra-ainsi-de-vérifier-et-valider-la-méthode, Cependant pour des raisons analytiques un volume de 5 ml par échantillon a été nécessaire dans le cas de cette dernière technique, Décrite § II.1) Le rapport 25mg de solide dans 10mL de solution

P. H. Brunauer, E. Emmett, and . Teller, Adsorption of Gases in Multimolecular Layers, Journal of the American Chemical Society, vol.60, issue.2, pp.60-309, 1938.
DOI : 10.1021/ja01269a023

J. Gregg and K. S. Sing, Adsorption, surface area and porosity, 2 ND ed, p.113, 1982.

A. P. Legrand, Introduction à la résonnance magnétique nucléaire haute résolution dans les solides : principe, possibilités, limitations, J. Chim. Phys, pp.10-1204, 1987.

. Lindsay, High Performance Liquid Chromatography, Analytical Chemistry by open learning, 1992.

M. Rosset, A. Caude, and . Jardy, Chromatographie en phase liquide et supercritique, 1991.

G. Dorsey, Liquid chromatography: theory and methodology, Analytical Chemistry, vol.64, issue.12, p.353, 1992.
DOI : 10.1021/ac00036a020

A. Ramsteiner, Systematic approach to column switching, Journal of Chromatography A, vol.456, issue.3, p.456, 1988.
DOI : 10.1016/0021-9673(86)80002-4

M. Simon, T. Lafontaine, and . Nicot, Trace determination of urinary 3-hydroxybenzo[a]pyrene by automated column-switching high-performance liquid chromatography, Journal of Chromatography B: Biomedical Sciences and Applications, vol.748, issue.2, pp.748-337, 2000.
DOI : 10.1016/S0378-4347(00)00350-9

. Goubert-renaudin, Synthèse, caractérisation et réactivité en milieu aqueux de matériaux à base de silice fonctionnalisée par des ligands dithiocarbamate et cyclame, Thèse de l'université Henri Poincaré, 2007.

S. H. Kleitz, R. Choi, and . Ryoo, Cubic la3d large mesoporous silica : synthesis and replication to platinum nanowires, carbon nanorods and carbon nanotubes, Chem. Commun, 2003.

E. Mahmoud, Selective solid phase extraction of mercury(II) by silica gel-immobilizeddithiocarbamate derivatives, Anal. Chim. Acta, pp.398-297, 1999.

P. M. Wielders and C. J. Mink, Analysis of vanillylmandelic acid, homovanillic acid and 5-hydroxyindoleacetic acid in human urine by high-performance liquid chromatography and fluorometry, Journal of Chromatography B: Biomedical Sciences and Applications, vol.310, issue.2, pp.310-379, 1984.
DOI : 10.1016/0378-4347(84)80103-6

L. Hydrates-de-carbone, glucides) : arabinose, xyloséribose, fucose, rhamnose, kétopentose, glucose, galactose, mannose, fructose

L. Vitamines and . Hormones, vitamine B6 (sous la forme d'acide 4-pyridoxique), acide nicotinique, vitamine B12, bioptérine, acide ascorbique (vitamine C), et gonadotropine, corticotropine, prolactine, hormones lactogènes