Clark C C
J Assoc Off Anal Chem. 1979 May;62(3):560-3.
Six laboratories collaboratively studied a method for the quantitative gas-liquid chromatographic (GLC) determination of phencyclidine.HCl in powders. The phencyclidine.HCl and other water-soluble compounds are dissolved in dilute HCl. A portion of the aqueous solution is made weakly basic with K2HPO4, and the organic-soluble compounds are extracted in CHCl3 for the GLC determination of the phencyclidine.HCl. Eicosane (n-C20) is incorporated in the extracting CHCl3 as an internal standard. The samples collaboratively studied included samples of known phencyclidine.HCl concentration and one sample of unknown purity. Recoveries ranged from 92.1 to 104% and per cent standard deviations from 1.05 to 3.39. The method was adopted as official first action.
六个实验室合作研究了一种用于定量测定粉末中盐酸苯环利定的气液色谱（GLC）方法。盐酸苯环利定和其他水溶性化合物溶解于稀盐酸中。取一部分水溶液用磷酸氢二钾调至弱碱性，将有机可溶性化合物用三氯甲烷萃取，用于气相色谱法测定盐酸苯环利定。正二十烷（n-C20）作为内标加入到萃取用的三氯甲烷中。合作研究的样品包括已知盐酸苯环利定浓度的样品和一个纯度未知的样品。回收率在92.1%至104%之间，标准偏差百分比在1.05%至3.39%之间。该方法被采用为官方首次行动方法。
