GB/T 41412-2022 Translated English of Chinese Standard (GB/T41412-2022, GBT 41412-2022): Determination of isothiazolinone preservatives in toys -- High performance liquid chromatography-tandem mass spectrometry [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]https://www.chinesestandard.net, 2022 M08 21 - 13 páginas This Standard specifies high performance liquid chromatography-tandem mass spectrometry for determination of isothiazolinone preservatives in toys. This Standard applies to determination of 2-methyl-4-isothiazolin-3-one (MIT), 5-chloro-2-methyl-4- |
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0.050mL of internal Accurately weigh Allowable relative deviation Annex arithmetic mean bubble water chromatography-tandem mass spectrometer CMIT and BIT CMIT-d coefficient of variation Determination of isothiazolinone dilute extract is filtered finger paint GB/T Gradient elution procedure high performance liquid internal standard mixed Internal standard substance ion m/z isothiazolinone preservatives limits of quantification liquid chromatography-tandem mass mass concentration methanol 5.2 Method validation test microporous membrane 5.10 milligrams MIT-d mixed solution 5.8 mixed working solutions Mobile phase Monitoring mode monitoring transition Number performance liquid chromatography-tandem Precision test results preservatives in bubble preservatives in toys preservatives is shown Purity is 95 quantitative ion reference working conditions related parameter setting relative abundance ratio sample solution Shanghai shown in Table solutions with mass spectrometry standard deviation standard mixed solution standard stock solution Stoppered glass bottle Table A.1 test data statistics Time/min Total ion chromatogram transition and related ultrasonic extraction validation test data weigh an appropriate