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HPLC法测定对乙酰氨基酚片中有关物质的含量 Δ
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杨 莉 ,梅 勇 ,龙 涛,罗 磊,陈小雪(重庆国泰康宁制药有限责任公司,重庆 401520)
中图分类号 R917 文献标志码 A 文章编号 1001-0408(2020)10-1233-06
DOI 10.6039/j.issn.1001-0408.2020.10.15
摘 要 目的:建立测定对乙酰氨基酚片中有关物质含量的方法。方法:采用高效液相色谱法。色谱柱为Agilent 5HC-C8,流动相
A、B分别为甲醇-水-冰醋酸(50 ∶ 950 ∶ 1,V/V/V)和甲醇-水-冰醋酸(500 ∶ 500 ∶ 1,V/V/V)(梯度洗脱),流速为0.9 mL/min,检测波长为
254 nm,柱温为40 ℃,进样量为5 μL。结果:该色谱条件下,对乙酰氨基酚片中的主药(对乙酰氨基酚)、6个已知杂质(对氨基酚、
对氯苯乙酰胺和杂质A、B、D、F)、3个制剂特定辅料(羟苯甲酯、羟苯乙酯和羟苯丙酯)和1个未知杂质的分离度均大于1.5。6个
已知杂质检测质量浓度的线性范围分别为 0.539~1.617、0.026~0.384、0.237~17.799、0.257~19.271、0.239~17.955、0.246~
18.462 μg/mL(r≥0.999 8),杂质 A、B、D、F 的校正因子分别为 2.9、1.0、1.2、6.2;检测限分别为 0.009 6、0.024 2、0.164 0、0.051 1、
0.055 9、0.422 0 ng,定量限分别为0.032 0、0.080 6、0.546 0、0.170 0、0.186 0、1.406 0 ng;平均回收率为95.96%~111.09%(RSD为
0.05%~2.42%);精密度试验的RSD均小于15%,且耐用性良好。3批样品均检出了对氨基酚(均为0.006%)、杂质B(0.016%~
0.017%)、未知杂质(0.002 0~0.002 1%),未检出对氯苯乙酰胺和杂质A、D、F。结论:该方法专属性强、准确度高,可用于对乙酰
氨基酚片有关物质的测定。
关键词 高效液相色谱法;对乙酰氨基酚片;有关物质;含量
Content Determination of Related Substances in Paracetamol Tablets by HPLC
YANG Li,MEI Yong,LONG Tao,LUO Lei,CHEN Xiaoxue(Chongqing Cathay Corning Pharmaceutical Co.,
Ltd.,Chongqing 401520,China)
ABSTRACT OBJECTIVE:To establish the method for content determination of related substances in Paracetamol tablets.
METHODS:HPLC method was adopted. The determination was performed on Agilent 5HC-C8 column with mobile phase A
consisted of methanol-water-glacial acetic acid(50 ∶ 950 ∶ 1,V/V/V)and mobile phase B consisted of methanol-water-glacial acetic
acid(500 ∶ 500 ∶ 1,V/V/V)(gradient elution)at the flow rate of 0.9 mL/min. The detection wavelength was set at 254 nm,and
column temperature was 40 ℃. The sample size was 5 μL. RESULTS:Under the chromatographic condition,the resolutions of
main component (paracetamol),6 known impurities (p-aminophenol,p-chloroacetanilide,impurity A,B,D,F),3 specific
excipients(methyl hydroxybenzoate,ethyl hydroxybenzoate,propyl hydroxybenzoate)and 1 unknown impurity were all higher
than 1.5. The linear range of 6 known impurities were 0.539-1.617,0.026-0.384,0.237-17.799,0.257-19.271,0.239-17.955,
0.246-18.462 μg/mL(r≥0.999 8),respectively. Correction factors of impurity A,B,D,F were 2.9,1.0,1.2,6.2. The limits of
detection were 0.009 6,0.024 2,0.164 0,0.051 1,0.055 9,0.422 0 ng;the limits of quantitation were 0.032 0,0.080 6,0.546
0,0.170 0,0.186 0,1.406 0 ng. Average recoveries were 95.96%-111.09%(RSDs were 0.05%-2.42%). The RSDs precision test
were low than 15%,and the durability were good. p-aminophenol(all were 0.006%),impurity B(0.016%-0.017%)and unknown
impurity(0.002 0%-0.002 1%)were detected in 3 batches of sample. p-choroacetanilide,impurity A,D and F were not detected.
CONCLUSIONS:The method is specific,accurate and suitable for the determination of related substance in Paracetamol tablets.
KEYWORDS HPLC;Paracetamol tablets;Related substance;Content
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Δ 基金项目:重庆市技术创新与应用发展专项面上项目(No.
fect of Curcuma aromatica[J]. Biomed Chromatogr,2018.
cstc2019jscx-msxmX0159)
DOI:10.1002/bmc.4220.
*高级工程师。研究方向:新药研发。电话:023-81660371。E-
(收稿日期:2019-09-29 修回日期:2020-03-07)
mail:372710395@qq.com
(编辑:陈 宏)
# 通信作者:高级工程师。研究方向:新药研发、药理学。电话:
023-81660346。E-mail:631760046@qq.com
中国药房 2020年第31卷第10期 China Pharmacy 2020 Vol. 31 No. 10 ·1233 ·