title: Rapid measurement of free cyanide in liquor by ion chromatography with pulsed amperometric detection.
abstract: This study investigated the measurement of free cyanide in liquor by ion chromatography coupled with pulsed amperometric detection (IC-PAD). Eluent concentration, interferent evaluation and method performance were discussed. Results show that free cyanide in liquor can be rapidly determined by the optimised IC-PAD method. A sample requires only 1:100 dilution and simple filtration before being subjected to IC-PAD. The linear range is 1-5000 μg/L with an R value of 0.9998. The detection limit is 1 μg/L for a 25 μL injection loop. The overall relative standard deviation (RSD) of the method is less than 5%, and the recovery range is from 98.1% to 105.0%. This study has been proven significant and may have potential applications in liquors analysis.
authors.affiliation: Department of Food, Chengdu Institute of Product Quality Inspection Co., Ltd., Chengdu, Sichuan 610100, China; Department of Food, Chengdu Product Quality Supervision and Inspection Institute, Chengdu, Sichuan 610100, China. Electronic address: 2008802@qq.com.
authors.forename: Wenlin
authors.initials: W
authors.lastname: Wu
authors.affiliation: Department of Food, Chengdu Institute of Product Quality Inspection Co., Ltd., Chengdu, Sichuan 610100, China; Department of Food, Chengdu Product Quality Supervision and Inspection Institute, Chengdu, Sichuan 610100, China.
authors.forename: Quanwei
authors.initials: Q
authors.lastname: Xiao
authors.affiliation: Department of Food, Chengdu Institute of Product Quality Inspection Co., Ltd., Chengdu, Sichuan 610100, China; Department of Food, Chengdu Product Quality Supervision and Inspection Institute, Chengdu, Sichuan 610100, China.
authors.forename: Ping
authors.initials: P
authors.lastname: Zhang
authors.affiliation: Department of Food, Chengdu Institute of Product Quality Inspection Co., Ltd., Chengdu, Sichuan 610100, China; Department of Food, Chengdu Product Quality Supervision and Inspection Institute, Chengdu, Sichuan 610100, China.
authors.forename: Mei
authors.initials: M
authors.lastname: Ye
authors.affiliation: Department of Food, Chengdu Institute of Product Quality Inspection Co., Ltd., Chengdu, Sichuan 610100, China; Department of Food, Chengdu Product Quality Supervision and Inspection Institute, Chengdu, Sichuan 610100, China.
authors.forename: Yuping
authors.initials: Y
authors.lastname: Wan
authors.affiliation: Department of Food, Chengdu Institute of Product Quality Inspection Co., Ltd., Chengdu, Sichuan 610100, China; Department of Food, Chengdu Product Quality Supervision and Inspection Institute, Chengdu, Sichuan 610100, China.
authors.forename: Hengxing
authors.initials: H
authors.lastname: Liang
mesh_terms: D000434:Alcoholic Beverages / Q000032:analysis*; D002138:Calibration; D002852:Chromatography, Ion Exchange / Q000379:methods*; D003486:Cyanides / Q000032:analysis*; D055664:Electrochemical Techniques
chemical_list: D003486:Cyanides
keywords: Free cyanide; Ion chromatography; Liquor; Pulsed amperometric detection