CN103995063A - 一种盐酸苯达莫司汀中有关物质的检测方法 - Google Patents

一种盐酸苯达莫司汀中有关物质的检测方法 Download PDF

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CN103995063A
CN103995063A CN201410233845.5A CN201410233845A CN103995063A CN 103995063 A CN103995063 A CN 103995063A CN 201410233845 A CN201410233845 A CN 201410233845A CN 103995063 A CN103995063 A CN 103995063A
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acetonitrile
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李玉斌
丁兆
孙朝国
胡刚
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SICHUAN HUIYU PHARMACEUTICAL CO Ltd
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SICHUAN HUIYU PHARMACEUTICAL CO Ltd
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Abstract

本发明公开了一种盐酸苯达莫司汀中有关物质的检测方法,采用高效液相色谱分析方法,选用十八烷基硅烷键合硅胶色谱柱,以0.1%的三氟乙酸溶液-乙腈为流动相进行梯度洗脱,流速为0.8-1.2mL/min,柱温30-35℃,样品的检测波长为242nm或254nm;所述的流动相进行梯度洗脱0.1%的三氟乙酸溶液与乙腈的体积比为85-90%:10-15%,0-5min;50-55%:45-50%,25-35min;85-90%:10-15%,36-46min。本方法具有简单可行,流动相易配制,灵敏度高的优点。

Description

一种盐酸苯达莫司汀中有关物质的检测方法
本发明涉及一种有关物质的检测方法,特别涉及一种盐酸苯达莫司汀中有关物质的检测方法。
背景技术
众所周知,药物纯度对病人的影响是非常大的。注射药物不纯是引起药物不良反应(如过敏、药物热等)的主要原因。口服药物不纯,可能增加不良反应的发生率,如恶心、呕吐、腹痛、腹泻等。同时,可能影响的是药物的吸收,从而影响药物疗效。因此,药物纯度的检测方法就显的尤为重要。
目前,对于药物纯度的检测方法也有多种,其中,有关物质检测是控制药品质量的重要指标。盐酸苯达莫司汀,化学名为4-[5-[双-(2-氯乙基)氨基]-1-甲基-2-苯并咪唑]丁酸盐酸盐,结构式为:   
它是一种双功能基烷化剂,具有抗肿瘤和杀细胞作用。对于其有关物质的检测方法,申请号201010256873.0的发明专利申请中,请求保护的高效液相色谱分析方法。
该技术方案所存在的主要问题是其有关物质方法为等度洗脱,在有关物质检查中,等度相对梯度来说,等度可能洗脱能力不够,或者容易把杂质冲到一起去,所以等度方法不如梯度洗脱。 
本实验方案采用梯度洗脱,更好的将有关物质从极性小的到极性大的洗脱出来,明显解决了该问题。
发明内容
本发明的目的在于克服现有技术中所存在的上述不足,提供一种盐酸苯达莫司汀中有关物质的检测方法。
为了实现上述发明目的,本发明提供了以下技术方案:
一种盐酸苯达莫司汀中有关物质的检测方法,采用高效液相色谱分析方法,选用十八烷基硅烷键合硅胶色谱柱,以0.1%的三氟乙酸溶液-乙腈为流动相进行梯度洗脱,流速为0.8-1.2mL/min,柱温30-35℃,样品的检测波长为242nm或254nm;
所述的流动相进行梯度洗脱0.1%的三氟乙酸溶液与乙腈的体积比为85-90%:10-15%,0-5min;50-55%:45-50%,25-35min;85-90%:10-15%,36-46min。我们采用梯度洗脱的方式,前期乙腈比例比较小,主要洗脱极性比较大的杂质,后面慢慢增大乙腈比例,保证所有有关物质完全冲出并达到基线分离。
优选的,所述的流动相进行梯度洗脱0.1%的三氟乙酸溶液与乙腈的体积比为90%:10%,0-5min;55%:45%,25-35min;85%:15%,36-46min。采用该体积比进行梯度洗脱,分离度达到基线分离,就可比较明显的看出每个峰的分离程度,分离度越大,两个组分峰分的越开,最大可达到30。柱效越高,半峰宽越小,峰越瘦,最大可达到30万。拖尾因子小于等于1.5,越接近1,峰越对称。
所述的十八烷基硅烷键合硅胶色谱柱填料的颗粒度为3-5μm,规格为250mm×4.6mm或150mm×4.6mm。
所述的样品为0.2-0.6mg/mL的盐酸苯达莫司汀的二甲基亚砜、甲醇或乙醇溶液。选用二甲基亚砜作为溶剂配制的样品溶液,样品溶解性、稳定性好,稳定期达到一个星期。选用甲醇或乙醇作为溶剂配制的样品溶液,样品溶解性好、稳定性好,同时,检测时没有溶剂峰,具有更好的分离效果。
取所述样品10-20μL,进样测定,按外标法以峰面积计算盐酸苯达莫司汀中有关物质含量。
与现有技术相比,本发明的有益效果:选用0.1%的三氟乙酸溶液-乙腈流动相进行梯度洗脱,分离效果操作简便。选用二甲基亚砜、甲醇或者乙醇作为样品溶剂,配制的样品稳定性好、溶解性好。
附图说明:
图1为实施例1高效液相色谱图。
图2为实施例2高效液相色谱图。
图3为实施例3高效液相色谱图。
图4为对比例高效液相色谱图。
具体实施方式
下面结合试验例及具体实施方式对本发明作进一步的详细描述。但不应将此理解为本发明上述主题的范围仅限于以下的实施例,凡基于本发明内容所实现的技术均属于本发明的范围。
实施例1
一种盐酸苯达莫司汀中有关物质的检测方法,采用高效液相色谱分析方法,选用MN. Nucleodur Sphinx RP 18色谱柱,填料的颗粒度为5μm,规格为250mm×4.6mm。以0.1%的三氟乙酸溶液-乙腈为流动相进行梯度洗脱,流速为1.0mL/min,柱温30℃,样品的检测波长254nm。
所述的流动相进行梯度洗脱0.1%的三氟乙酸溶液与乙腈的体积比为90%:10%,0-5min;55%:45%,25-35min;85%:15%,36-46min。
取0.5mg/mL的盐酸苯达莫司汀的甲醇溶液,进样10ul测定,按外标法以峰面积计算盐酸苯达莫司汀中有关物质含量。检测结果如图1所示。分离度最高达到24.93。柱效最高达到292663.64。拖尾因子最小为1.12,接近1,峰形对称。
实施例2
一种盐酸苯达莫司汀中有关物质的检测方法,采用高效液相色谱分析方法,选用Agilent zorbax SB-C18色谱柱,填料的颗粒度为3μm,规格为150mm×4.6mm。以0.1%的三氟乙酸溶液-乙腈为流动相进行梯度洗脱,流速为1.0mL/min,柱温32℃,样品的检测波长242nm。
所述的流动相进行梯度洗脱0.1%的三氟乙酸溶液与乙腈的体积比为85%:15%,0-5min;50%:50%,25-35min;90%:10%,36-46min。
取0.25mg/mL的盐酸苯达莫司汀的乙醇溶液,进样20ul测定,按外标法以峰面积计算盐酸苯达莫司汀中有关物质含量。检测结果如图2所示。分离度最高达到30.13;柱效最高达到221507.7;拖尾因子最小为1.06,接近1,峰形对称
实施例3
一种盐酸苯达莫司汀中有关物质的检测方法,采用高效液相色谱分析方法,选用资生堂 MG ⅡC18色谱柱,填料的颗粒度为5μm,规格为250mm×4.6mm。以0.1%的三氟乙酸溶液-乙腈为流动相进行梯度洗脱,流速为1.0mL/min,柱温35℃,样品的检测波长254nm。
所述的流动相进行梯度洗脱0.1%的三氟乙酸溶液与乙腈的体积比为87%:13%,0-5min;45%:45%,25-35min;87%:13%,36-46min。
取0.5mg/mL的盐酸苯达莫司汀的二甲基亚砜溶液,进样10ul测定,按外标法以峰面积计算盐酸苯达莫司汀中有关物质含量。检测结果如图3所示。分离度最高达到30.13;柱效最高达到247447.5;拖尾因子最小达到1.02,非常接近1,峰形对称
    对比例
一种盐酸苯达莫司汀中有关物质的检测方法,采用高效液相色谱分析方法,选用MN. Nucleodur Sphinx RP 18色谱柱,填料的颗粒度为5μm,规格为250mm×4.6mm。以0.1%的三氟乙酸溶液-乙腈进行等度洗脱,所述的流动相进行等度洗脱0.1%的三氟乙酸溶液与乙腈的体积比为55%:45%,0-35min。
流速为1.0mL/min,柱温30℃,样品的检测波长254nm。
取0.5mg/mL的盐酸苯达莫司汀的二甲基亚砜溶液,进样10ul测定,按外标法以峰面积计算盐酸苯达莫司汀中有关物质含量。检测结果如图4所示,该方法为等度洗脱,洗脱力度太大,造成只有两个峰,杂质A,B,C均未出峰,主峰RT只有3.665,保留时间太短。

Claims (5)

1.一种盐酸苯达莫司汀中有关物质的检测方法,采用高效液相色谱分析方法,其特征在于:选用十八烷基硅烷键合硅胶色谱柱,以0.1%的三氟乙酸溶液-乙腈为流动相进行梯度洗脱,流速为0.8-1.2mL/min,柱温30-35℃,样品的检测波长为242nm或254nm;
所述的流动相进行梯度洗脱0.1%的三氟乙酸溶液与乙腈的体积比为85-90%:10-15%,0-5min;50-55%:45-50%,25-35min;85-90%:10-15%,36-46min。
2.如权利要求1所述的检测方法,其特征在于:所述的流动相进行梯度洗脱0.1%的三氟乙酸溶液与乙腈的体积比为90%:10%,0-5min;55%:45%,25-35min;85%:15%,36-46min。
3.如权利要求1所述的检测方法,其特征在于:所述的十八烷基硅烷键合硅胶色谱柱填料的颗粒度为3-5μm,规格为250mm×4.6mm或150mm×4.6mm。
4.如权利要求1所述的检测方法,其特征在于,所述的样品为0.2-0.6mg/mL的盐酸苯达莫司汀的二甲基亚砜、甲醇或者乙醇溶液。
5.如权利要求1所述的检测方法,其特征在于:取所述样品10-20μL,进样测定,按外标法以峰面积计算盐酸苯达莫司汀中有关物质含量。
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