Development of an analytical method to detect cyanide in Chinese liquor by ion chromatography with pulsed amperometric detection
Objective This study aimed to develop an ion chromatography-pulse amperometry (IC-PAD) technique for the identification and quantification of cyanide in Chinese liquor. Methods The real samples from local markets were diluted to 1∶10 with ultrapure water before being injected to IC-PAD. Potassium hy...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
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The Editorial Office of Chinese Journal of Food Hygiene
2020-05-01
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| Series: | Zhongguo shipin weisheng zazhi |
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| Online Access: | http://www.zgspws.com/zgspwszzen/article/abstract/20200307 |
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| author | Zifei WANG Hongjian MIAO Pengjie LUO Tiehu SUN Xiaowei ZHENG Jie GUO |
| author_facet | Zifei WANG Hongjian MIAO Pengjie LUO Tiehu SUN Xiaowei ZHENG Jie GUO |
| author_sort | Zifei WANG |
| collection | DOAJ |
| description | Objective This study aimed to develop an ion chromatography-pulse amperometry (IC-PAD) technique for the identification and quantification of cyanide in Chinese liquor. Methods The real samples from local markets were diluted to 1∶10 with ultrapure water before being injected to IC-PAD. Potassium hydroxide (12 mmol/L) was introduced for gradient elution. Silver electrode was utilized with Ag/AgCl composite reference electrode mode. Three potential wave forms were also involved in the study. Results This method showed good linear responses ranging from 5 to 200 μg/L with satisfactory linear correlation coefficient of 0.999 9. The limit of detection (LOD) was 3.5 μg/L, and the limit of quantitation (LOQ) was 9.5 μg/L in Chinese liquor samples. For different types of Chinese liquor, the recoveries of cyanide in fortified samples (10, 30, 50 μg/L) were from 91.7% to 102.0%. The intra-day relative standard deviation (RSD) was from 2.2% to 4.8%, and the inter-day RSD ranged from 1.5% to 1.9%. The comparison between this proposed method and the GB 5009.36-2016 method showed no statistical difference (P>0.05). Conclusion This technique was performer-friendly and exhibited high reliability and accuracy, which was suitable for the detection of cyanide in real samples. |
| first_indexed | 2024-03-12T21:02:50Z |
| format | Article |
| id | doaj.art-3d7b67f0df26452a9bbdca03125c35d9 |
| institution | Directory Open Access Journal |
| issn | 1004-8456 |
| language | zho |
| last_indexed | 2024-03-12T21:02:50Z |
| publishDate | 2020-05-01 |
| publisher | The Editorial Office of Chinese Journal of Food Hygiene |
| record_format | Article |
| series | Zhongguo shipin weisheng zazhi |
| spelling | doaj.art-3d7b67f0df26452a9bbdca03125c35d92023-07-31T02:31:41ZzhoThe Editorial Office of Chinese Journal of Food HygieneZhongguo shipin weisheng zazhi1004-84562020-05-01320325726110.13590/j.cjfh.2020.03.0071004-8456(2020)03-0257-05Development of an analytical method to detect cyanide in Chinese liquor by ion chromatography with pulsed amperometric detectionZifei WANG0Hongjian MIAO1Pengjie LUO2Tiehu SUN3Xiaowei ZHENG4Jie GUO5China National Center for Food Safety Risk Assessment, Beijing 100022, ChinaChina National Center for Food Safety Risk Assessment, Beijing 100022, ChinaChina National Center for Food Safety Risk Assessment, Beijing 100022, ChinaNutrition&Health Research Institute, China Oil&Foodstuffs Corporation, Beijing 102209, ChinaNutrition&Health Research Institute, China Oil&Foodstuffs Corporation, Beijing 102209, ChinaNutrition&Health Research Institute, China Oil&Foodstuffs Corporation, Beijing 102209, ChinaObjective This study aimed to develop an ion chromatography-pulse amperometry (IC-PAD) technique for the identification and quantification of cyanide in Chinese liquor. Methods The real samples from local markets were diluted to 1∶10 with ultrapure water before being injected to IC-PAD. Potassium hydroxide (12 mmol/L) was introduced for gradient elution. Silver electrode was utilized with Ag/AgCl composite reference electrode mode. Three potential wave forms were also involved in the study. Results This method showed good linear responses ranging from 5 to 200 μg/L with satisfactory linear correlation coefficient of 0.999 9. The limit of detection (LOD) was 3.5 μg/L, and the limit of quantitation (LOQ) was 9.5 μg/L in Chinese liquor samples. For different types of Chinese liquor, the recoveries of cyanide in fortified samples (10, 30, 50 μg/L) were from 91.7% to 102.0%. The intra-day relative standard deviation (RSD) was from 2.2% to 4.8%, and the inter-day RSD ranged from 1.5% to 1.9%. The comparison between this proposed method and the GB 5009.36-2016 method showed no statistical difference (P>0.05). Conclusion This technique was performer-friendly and exhibited high reliability and accuracy, which was suitable for the detection of cyanide in real samples.http://www.zgspws.com/zgspwszzen/article/abstract/20200307chinese liquorion chromatographypulsed amperometriccyanide |
| spellingShingle | Zifei WANG Hongjian MIAO Pengjie LUO Tiehu SUN Xiaowei ZHENG Jie GUO Development of an analytical method to detect cyanide in Chinese liquor by ion chromatography with pulsed amperometric detection Zhongguo shipin weisheng zazhi chinese liquor ion chromatography pulsed amperometric cyanide |
| title | Development of an analytical method to detect cyanide in Chinese liquor by ion chromatography with pulsed amperometric detection |
| title_full | Development of an analytical method to detect cyanide in Chinese liquor by ion chromatography with pulsed amperometric detection |
| title_fullStr | Development of an analytical method to detect cyanide in Chinese liquor by ion chromatography with pulsed amperometric detection |
| title_full_unstemmed | Development of an analytical method to detect cyanide in Chinese liquor by ion chromatography with pulsed amperometric detection |
| title_short | Development of an analytical method to detect cyanide in Chinese liquor by ion chromatography with pulsed amperometric detection |
| title_sort | development of an analytical method to detect cyanide in chinese liquor by ion chromatography with pulsed amperometric detection |
| topic | chinese liquor ion chromatography pulsed amperometric cyanide |
| url | http://www.zgspws.com/zgspwszzen/article/abstract/20200307 |
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