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 actual rinsing area conversion, take a quantitative ethyl acetate solvent to evenly rinse the surface of the equipment, receive the eluent, and shake it up.
[0147] 3. Preparation of solution:
[0148] 3.1 Test solution: sample 1, shake the eluent after the above sampling, take 10ml into a filter syringe, filter with a 0.45μm nylon filter, discard 2ml of the primary filtrate, and take the subsequent filtrate to obtain 4- Dimethylaminopyridine test solution.
[0149] 3.2 Reference solution:
[0150] ① Control solution stock solution: Accurately weigh 10 mg of DMAP into a 20 ml volumetric flask,...
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