| 正交实验法在小麦粉中甲醛振荡提取条件的应用研究 |
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| 引用本文： | 张春芳,佟琦. 正交实验法在小麦粉中甲醛振荡提取条件的应用研究[J]. 中国无机分析化学, 2014, 4(3): 75-78 |
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| 作者姓名： | 张春芳 佟琦 |
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| 作者单位： | 河北省应用化学重点实验室 燕山大学环境与化学工程学院 河北 秦皇岛 066004;河北省应用化学重点实验室 燕山大学环境与化学工程学院 河北 秦皇岛 066004 |
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| 基金项目： | 河北省科技支撑计划项目“小麦粉及其制品中甲醛的高效液相色谱快速测定方法研究”项目(12275530)资助 |
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| 摘 要： | 小麦粉中甲醛的提取问题是一个比较复杂的多因素问题。采用正交实验法,选用L9(34)正交实验表,在提取试剂、提取温度、提取时间等多个因素和水平中优选小麦粉中甲醛振荡提取的最佳条件。实验中甲醛提取量采用Nash试剂柱前衍生高效液相色谱法测定。结果表明,提取温度是小麦粉中甲醛提取的最主要因素,最佳的提取条件为提取温度30℃、提取液为硫酸钠、提取时间为40min。
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| 关 键 词： | 正交实验法 甲醛 振荡提取 高效液相色谱 小麦粉 |
| 收稿时间： | 2014-03-25 |
| 修稿时间： | 2014-04-23 |
Orthogonal experiment method in the application research of formaldehyde volatile in wheat flour extraction conditions |
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| ZHANG ChunFang and TONG Qi. Orthogonal experiment method in the application research of formaldehyde volatile in wheat flour extraction conditions[J]. Chinese Journal of Inorganic Analytical Chemistry, 2014, 4(3): 75-78 |
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| Authors: | ZHANG ChunFang and TONG Qi |
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| Affiliation: | Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, Hebei, 066004, China;Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, Hebei, 066004, China |
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| Abstract: | The extraction of formaldehyde in wheat flour is a complicated multi-factor problem. In this article, analytical conditions was investigated through orthogonal test method. The L9 （34） orthogonal test table was used and the experimental parameters such as extraction solvent, extraction temperature, extraction time and other were tested to obtain best conditions of oscillation extraction of formaldehyde from wheat flour. The extraction content of formaldehyde was determined by high performance liquid chromatography with pre-column using Nash reagent. The results showed that extraction temperature was the most important factor for extraction of formaldehyde from wheat flour. The optimized extraction conditions were as follows： the extraction temperature was 30℃, the extraction solvent was sodium sulfate, and the extraction time was 40 mins. |
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| Keywords: | orthogonal experiment. method formaldehyde oscillation extraction HPLC wheat flour |
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