Li H, Johnston M M, Mufson D
J Pharm Sci. 1977 Dec;66(12):1732-4. doi: 10.1002/jps.2600661219.
A sensitive and specific GLC method for the determination of urinary chlorthalidone levels was developed using on-column methylation. Chlorthalidone is converted to a tetramethylated derivative with trimethylanilinium hydroxide in methanol. This method which permits the determination of as little as 0.1 microgram of chlorthalidone/ml of dog urine, should be adequate for use with human subjects receiving a clinical dose.
采用柱上甲基化法建立了一种灵敏且特异的气相色谱法,用于测定尿中氯噻酮水平。氯噻酮在甲醇中与氢氧化三甲基苯胺反应转化为四甲基化衍生物。该方法能够测定低至0.1微克/毫升犬尿中的氯噻酮,适用于接受临床剂量的人类受试者。