Briefs
Excerpts from the history of absolute statements:
Solution Nebulization into a Low-Power Argon Microwave-Induced Plasma for Atomic Emission Spectrometry: Study of Synthetic Ocean Water
2084
D e t e c t i o n limits in t h e parts-per-billion r a n g e are o b t a i n e d for Cr, Mn, In, V, P b , Sr, a n d Zr in 10% ocean water. T h e signal precision h a s an R S D of 2% for 1-ppm solutions. Kin C. Ng* and Wei-lung Shen, Department of Chemistry, California State University—Fresno, Fresno, Calif. 93740 Anal. Chem., 58 (1986)
'Meut u/lâf ttei/e* UJCSC OH Hie. moon " Correspondence "Itï iuepoueoée &c HA Tàêutic ~tb Mule!' 'Tie eaitU u fiât!' Homogeneous Precipitation of Nickel as the Dimethylglyoxime Complex: Revisited 'T&uuvuj g/cadcettt LCEC can't be done'
2087
Jens Hemmingsen, David Larkin*, and Thomas Martin, Department of Chemistry, Towson State University, Towson, Md. 21204 Anal. Chem., 58 (1986)
Oops! another absolute bites t h e d u s t ! The BAS 2 0 0 makes gradient elution w i t h multichannel e l e c t r o c h e m i c a l d e t e c t i o n a viable option f o r d e t e r m i n a t i o n s of amino acids and other molecules of varying polarity. Even r e d u c t i v e gradient-LCEC is a breeze, thanks t o a deoxygenation utility built into t h e i n s t r u m e n t . Superior mixing dynamics in t h e BAS solvent delivery s y s t e m eliminate t h e high baseline noise w h i c h can sabotage gradient-elution LCEC w i t h m i n i m u m distortion of gradient profiles. Single or 4-channel variable wavelength U V / V I S detection provide still m o r e options.
Micro Carbon Electrode for Intracellular Voltammetry 2088 Alain Meulemans, Laboratoire de Biophysique, Faculté de Médecine Xavier Bichat, 16 rue H. Huchard, Paris 75018, France, and Bernard Poulain, Gerard Baux, and Ladislav Tauc*, Laboratoire de Neurobiologie Cellulaire et Moléculaire, CNRS, Gif-Sur-Yvette 91190, France, and Daniel Henzel, U 13 INSERM, Hôpital Claude Bernard, Paris 75019, France Anal. Chem., 58 (1986)
Comments on Improvement of the Limit of Detection in Chromatography by an Integration Method 2091 John B. Phillips, Department of Chemistry & Biochemistry, Southern Illinois University, Carbondale, 111. 62901 Anal. Chem., 58 (1986)
Comparison of an Integration Procedure to Fourier Transform and Data Averaging Procedures in Chromatographic Data Analysis
2093
Robert E. Synovec* and Edward S. Yeung, Ames Laboratory— USDOE and Department of Chemistry, Iowa State University, Ames, Iowa 50011 Anal. Chem., 58 (1986)
Regioselective Electrode System with a Poly(perfluoro sulfonic acid)-Coated Electrode Based on Cyclodextrin Complexation 2096 Tomokazu Matsue, Uichi Akiba, and Tetsuo Osa*, Pharmaceutical Institute, Tohoku University, Aobayama, Sendai 980, Japan Anal. Chem., 58 (1986)
Ternary gradient LCEC/LCUV is only one of 2 0 g r e a t ideas built into t h e BAS 2 0 0 Problem Solver.
BAS Bioanalytical Systems, Inc
2701 Kent Ave West Lafayette Indiana 47906 Te lex : 2 7 6 1 4 1 (317) 463-4527
CIRCLE 18 ON READER SERVICE CARD 962 A · ANALYTICAL CHEMISTRY, VOL. 58, NO. 9, AUGUST 1986
