| 直接蒸馏滴定AHMT法联合测定食品中的甲醛次硫酸氢钠 |
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| 引用本文： | 何小青,罗美中,蓝勇波,陈泽勇.直接蒸馏滴定AHMT法联合测定食品中的甲醛次硫酸氢钠[J].食品与发酵工业,2004,30(3):106-108. |
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| 作者姓名： | 何小青 罗美中 蓝勇波 陈泽勇 |
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| 作者单位： | 深圳市计量质量检测研究院,深圳,518055 |
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| 摘 要： | 利用直接蒸馏滴定 AHMT法联合测定食品中的甲醛次硫酸氢钠。综合考虑了甲醛含量及SO2 /HCHO含量的比值 ,以判定食品中的甲醛次硫酸氢钠 ,各种样品以甲醛定量的加标回收率为 98 0 %～ 1 0 7 2 % ,相对标准偏差 (RSD)为 2 7%～ 4 1 %。此方法适用于各种食品中的甲醛次硫酸氢钠含量的测定。
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| 关 键 词： | 甲醛次硫酸氢钠 甲醛 SO2 判定 |
| 修稿时间： | 2003年12月19 |
Testing of Sodium Formaldehyde Sulfoxylate in Food by Direct Distillation-titration Coupled with AHMT Spectrophotometer |
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| He Xiaoqing,Luo Meizhong Lan Yongbo Chen Zeyong.Testing of Sodium Formaldehyde Sulfoxylate in Food by Direct Distillation-titration Coupled with AHMT Spectrophotometer[J].Food and Fermentation Industries,2004,30(3):106-108. |
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| Authors: | He Xiaoqing Luo Meizhong Lan Yongbo Chen Zeyong |
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| Abstract: | Sodium formaldehyde sulfoxylate in foods were tested by direct distillation-titration coupled with AHMT spectrophotometer. The method of testing sodium formaldehyde sulfoxylate in food according to HCHO and SO 2/HCHO value is accurate and scientific. The recovery was 98.0%～ 107.2% and RSD was 2.7%～4.1% in tested samples. The method can be used to test sodium formaldehyde sulfoxylate in all foods. |
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| Keywords: | sodium formaldehyde sulfoxylate formaldehyde sulphur dioxide judge |
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