| 摘要 |
A process for determining the presence of an isothiazolone in a sample, comprises treating a first aliquot of the sample with base and then with a phosphomolybdotungstic acid reagent, and observing and, if desired, measuring, the colour thus generated, and treating a second aliquot of the sample in the same way except that the base has a lower pH, such that the isothiazolone ring is not broken but the same colour is generated in the presence of interfering components. This process effectively compensates for interference in an assay for, say, a biocide of the Kathon type. |
