| 气相色谱法测定新型多元复合液肥中二羧酸 |
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| 引用本文： | 刘敬兰,陈连文,周鸿娟.气相色谱法测定新型多元复合液肥中二羧酸[J].色谱,1999,17(1):95-96. |
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| 作者姓名： | 刘敬兰 陈连文 周鸿娟 |
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| 作者单位： | [1]河北师范大学实验中心 [2]河北经贸大学食品工程系 |
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| 摘 要： | 建立了新型多元复合液肥中丁二酸、戊二酸、己二酸的气相色谱分析方法。色谱条件：５％ＳＥ－３０不锈钢填充柱，程序升温，内标物为丙二酸二乙酯，３种二元酸二乙酯分别在２．３～９．３μｇ，１０．８～４３．２μｇ和２．８～１１．０μｇ质量范围内，其样品质量与样品峰面积和内标峰面积之比呈良好的线性关系，相关系数ｒ≥０．９９５５。
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| 关 键 词： | 气相色谱法 复合液肥 二羧酸 |
Determination of dicarboxylic acids in a new compound liquid fertilizer by gas chromatography] |
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| J Liu,L Chen,H Zhou.Determination of dicarboxylic acids in a new compound liquid fertilizer by gas chromatography][J].Chinese Journal of Chromatography,1999,17(1):95-96. |
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| Authors: | J Liu L Chen H Zhou |
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| Institution: | Experimental Center, Hebei Normal University, Shijiazhuang, 050016. |
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| Abstract: | A method for determination of succinic acid, glutaric acid and adipic acid in a new compound liquid fertilizer by gas chromatography is described. The sample after dried at 80 degrees C was extracted by ethyl alcohol, and then esterified in the presence of BF3. The esterified derivatives were injected into a gas chromatograph with a 5% SE-30 packed column, programmed from 140 degrees C (held for 1 min) to 160 degrees C (held for 6 min) at a rate of 6 degrees C/min. Internal standard was diethyl malonate. Calibration curves of the three diethyl esters were linear in the ranges of 2.3-9.3 micrograms, 10.8-43.2 micrograms and 2.8-11.0 micrograms respectively. |
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| Keywords: | NULL |
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