| 高效液相色谱法检测酸牛乳中纳他霉素含量的几种前处理方法比较 |
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| 引用本文： | 巩强,李波,田夏. 高效液相色谱法检测酸牛乳中纳他霉素含量的几种前处理方法比较[J]. 食品工程, 2012, 0(2): 46-47,54 |
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| 作者姓名： | 巩强 李波 田夏 |
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| 作者单位： | 山西省食品质量安全监督检验研究院,太原,030012 |
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| 摘 要： | 在酸牛乳基质中分别添加0．64mg／L、1．28mg／L、3．2mg／L、6．4mg／L、12．8mg／L5个浓度的纳他霉素标准品。分别用几种方法进行了酸牛乳样品前处理,高效液相色谱仪测定,外标法定量。比较了几种方法的回收率、检出限及通过滤膜难易程度。结果表明：方法的回收率为66％。103％,检出限为0．02mg／kg-0．03mg／kg。
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| 关 键 词： | 纳他霉素 前处理方法 比较 |
Comparison of pretreatment methods in determination of natamycin content in sour Milk by HPLC |
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| GONG Qiang,LI Bo,TIAN Xia. Comparison of pretreatment methods in determination of natamycin content in sour Milk by HPLC[J]. Food Engineering, 2012, 0(2): 46-47,54 |
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| Authors: | GONG Qiang LI Bo TIAN Xia |
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| Affiliation: | (Food quality supervision and inspection research institute of Shanxi province,Taiyuan 030012,China) |
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| Abstract: | Different concentrations of natamycin standards(0.64 mg / L,1.28 mg / L,3.2 mg / L,6.4 mg / L,12.8 mg / L)were added in sour milk.Several methods were used to the pretreatment of sour milk samples.They are assayed by HPLC and quantitative determined by external standard method.Recovery rate,detection limit,and the difficulty degree of filtration membrane were compared.Results showed that the recovery rate was between 66%～103% and the detection limit was 0.02 mg / kg～0.03 mg / kg. |
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| Keywords: | natamycin pre-treatment method comparison |
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