✦ LIBER ✦

Systematic and statistical errors in quantitative evaluation in TLC and HPTLC. 1. Evaluation by graphic methods

✍ Scribed by Ebel, S. ;Hocke, J.

Publisher: John Wiley and Sons
Year: 1978
Tongue: English
Weight: 300 KB
Volume: 1
Category: Article
ISSN: 0935-6304
DOI: 10.1002/jhrc.1240010307

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✦ Synopsis

Abstract

The paper discusses errors and error propagation in respect of graphic methods in quantitative in situ measurements in TLC. An error of 0.3% is possible by measuring only peak height if optimal conditions are chosen. This is in good agreement with analysis done practically which gives errors in the order of 0.3–0.6%. If the peak area is evaluated using the approximation peak height × half width, the error is in the order of 0.6%, but in real experiments only 1.5% had been found. Systematic errors in determining peak heights are introduced by the time constant of the amplifiers and the recorder.

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