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Determination of octylphenol, nonylphenol, bisphenol A, diethylstilbestrol, estrone, 17α-ethinyl

 Time of Update: 2022-08-19

1 SensitivityThe detection limit of this method: octylphenol and diethylstilbestrol are respectively 0. 1 SensitivityThe detection limit of this method: octylphenol and diethylstilbestrol are respectively 0. 1 SensitivityThe detection limit of this method: octylphenol and diethylstilbestrol are respectively 0.
Determination of octylphenol, nonylphenol, bisphenol A, diethylstilbestrol, estrone, 17α-ethinyl

 Time of Update: 2022-08-19

GB/T6682 Analytical Laboratory Water Specifications and Test Methods3 PrinciplesThe residues of octylphenol, nonylphenol, bisphenol A, diethylstilbestrol, estrone, 17α-ethinyl estradiol, 17β estradiol and estriol in the sample were extracted by ethyl acetate, gel permeation chromatography and solid phase extraction Purification, derivatization with tincture of heptafluorobutyrate, determination by gas chromatography-mass spectrometry, and quantification by external standard method .
Determination of octylphenol, nonylphenol, bisphenol A, diethylstilbestrol, estrone, 17α-ethinyl

 Time of Update: 2022-08-19

methanolDrawing of the elution curve of the gel purification column: put 5mL of the mixed standard solution on the column, rinse with 50% ethyl acetate solution of cyclohexane, collect the eluent, collect one tube per 10mL, and purge with nitrogen in a 40°C water bath to dry .

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