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J Vis Exp ; (188)2022 10 06.
Article in English | MEDLINE | ID: mdl-36282708

ABSTRACT

Thin-layer chromatography (TLC) is an accessible analytical technique that has been extensively used in organic chemistry research to quantify the yield of unknown samples. The present study developed an effective, cheap, and safe method to estimate the yield of samples on a TLC plate using the blue-LED illuminator. Lovastatin extracted from Aspergillus terreus was the example compound used in the present study. Regression models based on the lovastatin standard were used to evaluate the yield of lovastatin. Three methods were compared: bioassay, UV detection, and blue-LED illumination. The result showed that the blue-LED illumination method is significantly more time-effective than UV detection and bioassay methods. Additionally, the blue-LED illumination was a relatively safe option because of the concern of biological hazards in the bioassay method (e.g., microbial infection) and ultraviolet exposure in the UV detection method. Compared to the expensive methods requiring specialized instruments and long-term training before working independently, such as GC, HPLC, and HPTLC, using the blue-LED illuminator was an economical option to estimate the yield of samples from a TLC plate.


Subject(s)
Lighting , Lovastatin , Chromatography, Thin Layer/methods , Chromatography, High Pressure Liquid
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