| 摘要: |
| 建立了离子色谱法测定脂肪酸甲酯磺酸钠中的甲基硫酸钠的方法。采用AS19 4MM阴离子分析柱，研究选用不同淋洗液对甲基硫酸钠根的保留时间进行选择，得到较佳分析条件为：以13 mmol/L的氢氧化钠溶液作为流动相，流速0.70 mL /min，柱温25 ℃，进样量20 μL。结果表明，此方法采用的参数可以使脂肪酸甲酯磺酸钠中的甲基硫酸钠得到很好分离，标准溶液线性相关系数均为0.998 1，样品回收率较好，平均回收率为95.9%~101.8%。 |
| 关键词: 脂肪酸甲酯磺酸钠 离子色谱法 甲基硫酸钠 |
| DOI：10.13222/j.cnki.dc.2017.12.003 |
| 分类号: |
| 基金项目: |
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| Determination of sodium methyl sulfate in methyl ester sulfonates by ion chromatography |
|
LEI Xiao-ying
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|
Zanyu Technology Group Co., Ltd.
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| Abstract: |
| A method for determination of sodium methylsulfate in methyl ester sulfonates (MES) by ion chromatography was established. Using AS19 4MM anion analysis column, the retention time of methylsulfate ion was selected by selecting different eluents,
and the optimized analysis conditions were obtained as follows: the solution of 13 mmol/L sodium hydroxide was used as mobile phase; the flow rate was 0.70 mL/min the column temperature was 25 ℃, and the injection volume was 20 μL. The results showed that the parameters used in this method could lead to a good separation of sodium methylsulfate in MES. The linear correlation coefficient of the standard solution was 0.998 1. The recovery of the sample was good, and the average recovery was 95.9%~101.8%. |
| Key words: methyl ester sulfonate ion chromatography sodium methylsulfate |
