Table Of Content

ANALYTICA CHIMICA ACTA Volume 496 issues 1—2, 31 October 2003 www.elsevier.com/locate/aca CONTENTS (Full texts are incorporated in CJELSEVIER, a file in the Chemical Journals Online database available on STN International; Abstracted, indexed in: Aluminium Abstracts; Anal. Abstr.; Biol. Abstr; BIOSIS; Chem. Abstr.; Curr. Contents Phys. Chem. Earth Sci.; Engineered Materials Abstracts; Excerpta Medica; Index Med.; Life Sci; Mass Spectrum. Bull.; Material Business Alerts; Metals Abstracts; Sci. Citation Index) Special Issue Looking to the future of analytical chemistry 2003. Papers presented by Young North American Faculty A ah i ak a al be i i i Tae i a nae a ee Rh Dee lao 1 Materials and Thin Films Distance-dependent electron hopping conductivity and nanoscale lithography of chemically-linked gold monolayer protected cluster films FP. Zamborini, L.E. Smart (Louisville, KY, USA), M.C. Leopold and RW. Murray (Chapel Hill, NC, USA) ................... 3 Gold and alloy nanoparticles in solution and thin film assembly: spectrophotometric determination of molar absorptivity M.M. Maye, L. Han, N.N. Kariuki, N.K. Ly,W.-B. Chan, J. Luo and C.-J. Zhong (Binghamton, NY, USA) ..................... 17 Langmuir monolayers of gold nanoparticles: from ohmic to rectifying charge transfer tks ce W O's be bE SEN babe be AG VF aNA DpO R a ERE H be cw hb OO Ge ec eotes Abe eh nates 29 Electrochemical quartz crystal microbalance study of the electrodeposition mechanism of molybdenum oxide thin films from peroxo-polymolybdate solution a ee I I FR Rs 695K 6 ok Fae Aes ke dipie nn eaaieas bb Meee rdensi dy eed Peswmedn bine. 39 Fluorescence nonradiative energy transfer analysis of crosslinker heterogeneity in core—shell hydrogel nanoparticles ee gn aie i wdin sc poh be dee be CR eee Rhee 6 bdkn pete bvee ed ee aM aha hve eon 53 A sol-gel synthesis of polyether-based proton conducting electrolytes RR I ey oe oe ee re re re are eye ey re ee 65 Bioanalytical Direct oriented immobilization of F(ab’) antibody fragments on gold K.L. Brogan, K.N. Wolfe, PA. Jones and M.H. Schoenfisch (Chapel Hill, NC, USA) .....00..... c.cc. 0e.ee0 e0e e 73 Engineering DNA-electrode connectivities: manipulation of linker length and structure B.J. Taft, M. O’Keefe, J.T. Fourkas and S.O. Kelley (Chestnut Hill, MA, USA)... 2... ccc cece eens 81 Modification of the Cytosensor’™ microphysiometer to simultaneously measure extracellular acidification and oxygen consumption rates S.E. Eklund, DE. Cliffel, E. Kozlov, A. Prokop, J. Wikswo and F. Baudenbacher (Nashville,TN ,U SA) ....................5. 93 Probing direct binding affinity in electrochemical antibody-based sensors TL ck: Me NEY Gn GUE CMCIIINEUEL, WONG RIND 5c cece vce reeeceseneeccensprnenevsecteveenccepgaedspuniones 103 Spectroscopy Surface vibrational sum frequency and Raman studies of PAMAM GO, Gi and acylated PAMAM GO dendrimers A.P. Davis (New London, CT, USA), G. Ma and H.C. Allen (Columbus, OH, USA) .......06 c.cc. c..e0e0 00 es 117 Polarization characterization in surface second harmonic generation by nonlinear optical null ellipsometry Fee Pret GING Chk, GPPIITT CPI LIIUUD, FE LIA). ni cc eee ecw tree ne seaenseceusccreaseeeesssseues 133 Measuring melittin binding to planar supported lipid bilayer by chiral second harmonic generation a ee I ty Ne I NUE Ms kk eee vc ea des tnc ese ceed rene eneetenveseenipenabenenares 143 Raman excitation profile of a sterically protected diphosphene [ArP = PAr] T. Copeland, M.P. Shea, M.C. Milliken, R.C. Smith, J.D. Protasiewicz and M. Cather Simpson (Cleveland, OH, USA) ......... 155 Vill Contents Separations and Microfluidics Separation of methylated isomers of benzo[a]pyrene using micellar electrokinetic chromatography CS a oS ch hoa ORES AOE ROL VAM N EN See eR Rede 8 es er eeee he we 165 Enantiomeric separation of N’-nitrosonornicotine by capillary electrophoresis E.M. McCorquodale, H. Boutrid and C.L. Colyer (Oshawa, ON, Canada) ........... 00.0. c ccc eee eee eens 177 Looking into the high efficiency of chiral separations using a chiral-polymer as pseudo stationary phase for micellar electrokinetic chromatography K. Zhang, R. Krishnaswami and L. Sun (San Diego, CA, USA and Edmonton, Canada) ......0.0..0.. c.e ee. e.e e.ee 185 Optically gated vacancy electrophoresis in microfluidic devices J.L. Pittman, A.|. Terekhov, S.W. Suljak and S. Douglass Gilman (KnoxvilleTN , USA) .....0.00. e00e.e0. 0.ee e 195 Rapid prototyping of glass microchannels |. Rodriguez, P. Spicar-Mihalic, C.L. Kuyper, G.S. Fiorini and DT. Chiu (SeattleW,A , USA) ...........0 00.0. eee eee 205 Mass Spectrometry Fourier-transform mass spectrometry for detection of thioester-bound intermediates in unfractionated proteolytic mixtures of 80 and 191 kDa portions of Bacitracin A synthetase L. Hicks (Urbana, IL, USA), P.W einreb (Boston, MA, USA), D. Konz, M.A. Marahiel (Marburg, Germany), C.T.Walsh (Boston, MA, USA) and NLL. Kelleher (Urbana, IL, USA)... ccc ccc eee eee ee teense eeeees 217 The accuracy and precision of anew H/D exchange- and mass spectrometry-based technique for measuring the thermodynamic stability of proteins K.D. Powell, M.Z.Wang, P. Silinski, L. Ma, T.E. Wales, SY. Dai, A.H. Warner, X. Yang and MC. Fitzgerald (Durham, NC, USA)... 225 The utility of ion—molecule reactions in a quadrupole ion trap mass spectrometer for analyzing metal complex coordination structure Sees em nnn UE Wey WUD COMIUINUININUE , CR, MUIR cbs cic cc ka Mec w ae cekaccevceeevev¥ssedbevebavbebbesedes 233 The effect of hydrogen-bonding and terminal group structure on the dynamics of Ar collisions with self-assembled monolayers Sy eeree Gs, Gavne e, Ce PGE Ct, PPIT D CORUM,V IN, GAN) on ccc cc ccc bcc scence nebebnecoeseeeeaesecees 249 Microscopy and Surface Analysis Fully time-resolved near-field scanning optical microscopy fluorescence imaging a ee od GN ab veh hate eben Wb coms s vb aban teneneevececdbateseds 259 Analytical instrumentation based on force measurements: combinatorial atomic force microscopy I SR a a re neh Cae a pee ay ba hae EWS 6 Sinead MELEE DUD ame ea) Bs 267 Measurement of the chemical and morphological changes that occur on gold surfaces following thermal desorption and acid dissolution of adsorbed mercury He ee, oh a Gs Gers (M GIOOR, AL UIA) ow. inc ccc cece c ec ccnercebbosectacscceses 279 Decomposition of dimethyl methylphosphonate onTiO.(1 1 0): principal component analysis applied to X-ray photoelectron spectroscopy J. Zhou, K. Varazo, J.E. Reddic, M.L. Myrick and D.A. Chen (Columbia, SC, USA) ......0.0. .c .cc.c .c.ee. ee0 ee e 289 Environmental Applications of surface analysis in the environmental sciences: dehalogenation of chlorocarbons with zero-valent iron and iron-containing mineral surfaces M.M. McGuire, D.L. Carlson, PJ. Vikesland,T .K ohn, A.C. Grenier, L.A. Langley, A. Lynn Roberts and eg es ae tan a KIA GE Lhe Ah RMR PY Rod oe Ee bw RO Res 301 Seasonal variations in diurnal concentrations of trace elements in atmospheric aerosols in Chicago ss ae halal gow EP ad's + OkMROeRAS RASY LEO 0 14a OOK Eee es HR bea e eg Ree wees 315 Using solution equilibria to determine average molecular weight of the Suwannee River fulvic acids eS ae hae adb eh nhs & AGAR OL Wad vate bee webs No Wd ead bp ews Od bes Sol—gel based mid-infrared evanescent wave sensors for detection of organophosphate pesticides in aqueous solution M. Janotta, M. Karlowatz, F.V ogt and B. Mizaikoff (Atlanta,GA,USA) .......... 0.0.0 c ccc ccc cece eee e cence ee eeaeee