Wang Heng
2008
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Journal
Physical Testing and Chemical Analysis
Abstract
A pesticide intermediate,namely 2-chlorobenzothiazole(CBT) as well as its raw material 2-sulfhydrylbenzothiazole(SBT),was determined by HPLC.It was shown that linear relationships between the peak area and concentration of the above mentioned compounds were obtained in the range of 10.0-50.0 mg·L-1.Detection limits were found to be 0.005 mg·L-1 for CBT and 0.01 mg·L-1 for SBT.Tests for precision and recovery were also made,values of RSD(n=6) found were 0.67%(for CBT) and 1.29%(for SBT),and values of recovery were found in the ranges of 88.0%-106.0%(for CBT),and 88.9%-104.0%(for SBT).