SIMULTANEOUS MULTISAMPLE ANALYSIS AND APPARATUS THEREFOR

摘要

Analytical apparatus and methods for processing multiple samples simultaneously. Radiation such as laser light desirably including plural wavelengths (12, 14) is directed through multiple samples (32 a-d) simultaneously, as by directing a beam of radiation along a single path through all the samples. Response to each wavelength is monitored by monitoring an induced effect, other than the intensity of the applied radiation itself (42). Useful signal to noise ratios are obtained with low absorbance in each sample. One sample desirably is of known composition, and serves as an internal calibration standard.