Method for detecting residual 4-dimethylaminopyridine on device
A dimethylaminopyridine and detection method technology, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of inapplicable equipment cleaning sample testing, inability to solve the problem of 4-dimethylaminopyridine detection, and difficult sampling, etc. , to achieve the effect of high sensitivity, simple detection method and strong specificity
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[0140] Embodiment 1: the detection method of residual 4-dimethylaminopyridine on equipment
[0141] 1. Equipment:
[0142] Reactor 1---Surface area: 8.6m 2 ;Material: enamel;
[0143] Reactor 2 - surface area: 8.6m 2 ;Material: enamel;
[0144] Carbon removal filter 3 --- surface area: 1.5m 2 ;Stainless steel
[0145] 2. Sampling:
[0146] Take 10ml / 100cm 2 / min According to the conversion of the actual rinsing area, take a certain amount of ethyl acetate solvent to evenly rinse the surface of the equipment, receive the eluent, and shake well.
[0147] 3. Solution preparation:
[0148] 3.1 The test solution: sample 1, shake the eluate after the above sampling, take 10ml into the filter syringe, filter with a 0.45μm nylon filter membrane, discard the 2ml of the initial filtrate, and take the subsequent filtrate to obtain 4- Dimethylaminopyridine test solution.
[0149] 3.2 Reference substance solution:
[0150] ①Contrast solution stock solution: Accurately weigh 10mg...
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