Mass Spectral Correlations, Second Edition
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Mass Spectral Correlation» Second Edition
Advances in Chemistry Series No. 40
LabScan Spectrocolorlmeter, designed to measure the reflectance color of objects, is available in two basic configurations: signal processor, CRT, and sensor, or signal processor with 40-character display and sensor. The measuring geometry is 0°/45°. It has 0° illumination, or perpendicular illumination of the sample, and 45° viewing of the sample. HunterLab 406
Fred W. McLafferty, Editor Cornell University Rengachari Venkataraghavan, Editor Lederle Laboratories Updated and improved edition of ACS best seller essential for the interpretation of unknown mass spectra This volume is an invaluable resource for interpreting the copious spectral data generated in gas chromatography and mass spectrometry investigations. Comprehensive tables show the most probable assignments for peaks in electron ionization mass spectra of organic compounds. This expanded edition lists more than 3000 structures corresponding to 1500 elemental compositions, several times the number in the first edition of this book published in 1963. These data have been taken from a collection of electronionization mass spectra of nearly 33,000 different compounds. A list of abbreviations and a colorcoded key for interpreting data for each compound make this reference work easy to use.
E l e c t r o c h e m i c a l Detector
Chlorine Analyzer
LC-4B detector for LC consists of the Amperometric Controller and a thinlayer cell. Current-to-voltage gain is available from 0.1 to 500 nA/V in 12 steps. It is suited for analysis of biomedical substances such as catecholamines and indoles. Perkin-Elmer 412
EC/250 displays chlorine residual concentration in a sample directly on the digital panel meter. It incorporates an internal calibrator, eliminating the need for time-consuming procedures and undependable standards. IBM 413
Spectrophotometer
Droplet Counter-Current Chromatograph
Model 340 Spectrophotometer has a continuous wavelength range of 330 to 1000 nm to cover all routine colorimetric tests. It has photometric linearity of better than 1 % as a result of the combined narrow bandwidth (8 nm) and low (
