Detection method of cis-trans isomer in cis-propenyl phosphonic acid and related impurity thereof
A technology of isomerization of cis-acrylophosphate and cis-trans isomerization, which is applied in measuring devices, instruments, scientific instruments, etc., and can solve problems such as no related reports
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[0014] The following examples will help to understand the present invention, but these examples are only for illustrating the present invention, and the present invention is not limited to these contents.
[0015] A detection method for cis-trans isomers and related impurities thereof in cis-acrylphosphoric acid, said method comprising the steps of:
[0016] (1) Chromatographic conditions:
[0017] Chromatographic column: C-18 column, 4.6mm×250mm×5.0μm; flow rate 1.0ml / min; UV detector, detection wavelength 225nm, injection volume 10μl;
[0018] Mobile phase: 50mmol / L dipotassium hydrogen phosphate aqueous solution-methanol;
[0019] (2) Preparation of test solution: take 0.1 μl of test product, dissolve and dilute to 25 ml with mobile phase, and filter;
[0020] (3) Get the test solution, inject 10 microliters of samples, and record the spectrum. The retention time of cis-acrylphosphate is 12.3min, the relative retention value of its cis-trans isomers is 1.15, and the relat...
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