本文敘述了定神剂之一的Azacyclonol(α—(4-piperidyl)—benzhydrol hydrochloride) 在水溶液及尿中的比色定量方法。取5ml試品水溶液,加0.3％β-萘醌-4-磺酸鈉液1ml,及10％碳酸鈉液1ml,将此混合物於室溫放置一分钟,冰冷,以氯仿4ml提取。将氯仿层以无水硫酸鈉干燥,在458mμ测其吸光值。測定尿中含量时,可取供試尿液 This article describes the colorimetric method for the determination of Azacyclonol (α- (4-piperidyl) -benzhydrol hydrochloride) in aqueous solution and urine. Take 5 ml of the test solution, add 1 ml of 0.3% sodium β-naphthoquinone-4-sulfonate solution and 1 ml of 10% sodium carbonate solution. Allow the mixture to stand at room temperature for one minute, cool and extract in 4 ml of chloroform. The chloroform layer was dried over anhydrous sodium sulphate and its absorbance measured at 458 m. Determination of urine content, it is desirable to test urine