摘要
为准确测定再造烟叶中的草酸根、琥珀酸根、硫酸根和磷酸根的质量分数,研究了水、氢氧化钠溶液及不同浓度的甲磺酸（MSA）溶液对4种酸根离子萃取效率的影响,建立了再造烟叶中4种酸根离子的离子色谱检测方法,并采用该方法测定了26个再造烟叶样品中4种酸根离子的质量分数。结果表明：1以40 mmol/L MSA为提取液,样品中各个待测组分的提取效率达99.7%以上。2各个待测组分的加标回收率在99.3%～106.2%之间,方法的相对标准偏差（RSD）为0.27%～0.99%。该方法准确、简单、可靠,适用于再造烟叶样品中相关组分的测定。
In order to accurately determine the contents of oxalate, succinate, sulfate and phosphate in reconstituted tobacco, the effects of water, sodium hydroxide solution and different concentration methanesulfonic acid（MSA） solution on the extraction efficiency of the above four acidic anions were studied.A method for the quantification of the four acidic anions was developed with ion chromatography, and the amounts of the four acidic anions in 26 samples of reconstituted tobacco were determined. The results showed that： 1） The extraction efficiency of each tested component was more than 99.7% with 40 mmol/L MSA as extraction solution. 2） The recoveries of the four acidic anions ranged from 99.3% to 106.2% and the relative standard deviations were from 0.27% to 0.99%. The method is accurate, simple, reliable and suitable to determine the levels of oxalate, succinate, sulfate and phosphate in reconstituted tobacco.
出处
《烟草科技》
EI
CAS
CSCD
北大核心
2016年第6期71-75,共5页
Tobacco Science & Technology
基金
国家烟草专卖局科技项目"再造烟叶使用物质许可及安全性评估的研究"(国烟科[2012]268号)
关键词
离子色谱
再造烟叶
草酸根
琥珀酸根
硫酸根
磷酸根
Ion chromatography
Reconstituted tobacco
Oxalate
Succinate
Sulfate
Phosphate
