共查询到18条相似文献,搜索用时 78 毫秒
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高效毛细管电泳法在中药分析中的应用 总被引:1,自引:0,他引:1
简要介绍了高效毛细管电泳的六种主要分离模式及其在分析中药材的生物碱、黄酮、有机酸、香豆素类、醌类、苷类等成分和中药复方制剂中的应用,并分析了该技术的发展前景。 相似文献
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以近两年国内外的最新相关研究报道为基础,从农药、兽药和中药三方面,论述了毛细管电泳在其检测分析中的应用概况。 相似文献
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本文主要介绍了毛细管电泳技术与兽药残留测定,分析了毛细管电泳技术在测定方面的具体应用,应用后所起到的作用以及在未来医药检测方面的价值,以期为兽医药品的分析与管理工作提供一些参考依据。 相似文献
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采用高效毛细管电泳建立3种氟喹诺酮类与5种磺胺类药物同时分离的方法,研究了缓冲液离子浓度、pH、有机添加剂以及分离电压、温度等电泳参数,最终通过正交实验得到了最佳分离条件:紫外检测波长262 nm,缓冲液为40 mmol/L磷酸氢二钠-20 mmol/L柠檬酸,pH 8.47,电压为22 kv.结果表明,8种药物在9 min内完全分离,且各组分浓度与峰面积呈良好的线性关系,r为0.999~0.9995.RSD为0.44%~1.15%(迁移时间)和1.12%~2.32%(峰面积).该法快速、简便、准确. 相似文献
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上世纪80年代发展起来的毛细管电泳技术具有灵敏度高、迅速、简便以及消耗少等特点,文章首先对毛细管电泳技术进行了比较全面的介绍.然后对食品检测中毛细管电泳技术的应用进行了分析. 相似文献
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Federica Crivellente Nicola Bocchini Luca Vandin Patrizia Cristofori 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2009,38(3):326-331
Background: The rat is used often to assess the toxicity of new chemical entities in preclinical drug development. Bilirubin concentration in rat serum is routinely determined by colorimetric methods, but false positive results due to hemolyzed serum or direct interferences by test compounds may occur. Capillary electrophoresis (CE) is an automated method that requires small sample volume and facilitates the direct detection of bilirubin. Objective: The purpose of this study was to evaluate a CE method for detecting bilirubin and albumin‐bound bilirubin in rat serum and to measure potential interference by hemolysis and specific test compounds. Methods: Serum samples from male Sprague Dawley rats (n=20) were used in the study. Results obtained on a Beckman P/ACE MDQ CE instrument equipped with a UV‐detector were compared with those obtained using a colorimetric method on a Hitachi 912 analyzer. Bilirubin standards were used to evaluate the detection and stability of bilirubin in rat serum, and vials with ultrafiltration membranes were used to separate albumin‐bound bilirubin. Intraday and interday coefficients of variation (CV), linearity, and the effects of added hemoglobin and a test compound on CE results were determined. Results: The CE method was capable of detecting bilirubin and albumin‐bound bilirubin in rat serum samples with reproducible results and good accuracy. CVs were <3% and linearity of the CE assay was high (R2=0.9951). Abnormally high bilirubin peaks due to the presence of hemoglobin or the test compound were easily distinguished by means of CE. Conclusion: CE is a good alternative to the colorimetric methods currently used for the determination of bilirubin in rat serum. 相似文献
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高效毛细管电泳法同时检测地克珠利和妥曲珠利的含量 总被引:1,自引:2,他引:1
采用毛细管电泳-二极管阵列检测法建立了地克珠利和妥曲珠利两种结构相近的均三嗪类抗球虫药物的分离检测方法.同时还探讨了缓冲溶液的种类、浓度、pH值等诸多因素对分离检测结果的影响.上述两种药物在8 min内实现了基线分离.线性检测范围为0.5~100 μg/mL,检出限为0.1 μg/mL (S/N=3). 相似文献
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高效毛细管电泳法同时检测饲料中七种防腐剂 总被引:1,自引:0,他引:1
建立酸性条件下同时分离测定山梨酸(SA)、苯甲酸(BA)、脱氢乙酸(DHA)、对羟基苯甲酸甲酯(MP)、对羟基苯甲酸乙酯(EP)、对羟基苯甲酸丙酯(PP)、对羟基苯甲酸丁酯(BP)七种防腐剂的高效毛细管电泳法。本试验用甲醇:水=1:1(体积比)的混合液作为提取剂提取饲料样品中防腐剂;以40 mmol/l磷酸二氢钾(KH2PO4)和100 mmol/l十二烷基硫酸钠(SDS)的1:1体积比混合液(pH=4.00)作为缓冲液,采用高效毛细管胶束电动色谱法测定样品中七种防腐剂。该方法在19 min内实现了七种防腐剂的分离;SA、BA的线性范围分别为1~500μg/ml和3~500μg/ml,DHA、MP、PP、BP、PP的线性范围均为5~500μg/ml,线性相关系数≥0.999 5。SA、BA、DHA和四种对羟基苯甲酸酯类防腐剂的检测限分别为0.5、1.5、3.0、2.5μg/ml;样品平均回收率为80.8%~107.0%,相对标准偏差≤5.0%。该方法高效快速分离了多种防腐剂,并且可以应用到各种饲料样品的检测。 相似文献
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Crivellente F Bonato M Cristofori P 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2008,37(1):73-78
BACKGROUND: Serum protein analysis in both humans and experimental animal species has so far been carried out by labor-intensive techniques, such as agarose gel electrophoresis (AGE). OBJECTIVE: The objective of this study was to evaluate capillary electrophoresis (CE) as an alternative technique to AGE for the analysis of serum proteins from healthy animals. METHODS: Blood samples were collected into tubes without anticoagulant from 6 fasted healthy male mice, rats, dogs, marmosets, and humans. Serum proteins were separated by CE using a technique standardized for the analysis of human proteins, and the results (efficiency, resolution, and precision) were compared with those obtained through AGE. RESULTS: Compared with AGE, CE resulted in narrower peaks and more peaks. The efficiency of protein separation by CE was significantly higher for all species, and resolution (R) was significantly higher in samples from dogs. Using rat serum, intraday reproducibility was lower for all protein fractions, and interday reproducibility was lower for most peaks, compared with AGE. CONCLUSIONS: We conclude that CE is a viable alternative to AGE for the determination of protein electrophoresis in a routine veterinary clinical pathology laboratory. The minimal sample requirement (2 microL), complete automation, and quantitative results make CE an especially valuable technique for protein analysis in experimental animal models. 相似文献
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建立了双黄败毒颗粒的高效毛细管电泳分析方法。对黄连、黄芩进行定性鉴别;并以对乙酰氨基酚为内标,对黄连中的小檗碱进行定量分析。熔融石英毛细管柱为53.5cm(有效长度45cm)×75μm,运行缓冲液为50mmol/L硼砂-甲醇-乙腈(8∶1∶1),压力进样15kPa.s,运行电压15kV,柱上检测波长为265nm和280nm,毛细管柱温25℃。毛细管区带电泳法对黄连、黄芩的定性鉴别无阴性干扰,专属性强。盐酸小檗碱进样浓度在10.05~160.8μg/mL范围内线性关系良好,r=0.9998,平均加样回收率为103.1%,RSD为3.6%。本方法简便、快速、可行,可用于双黄败毒颗粒的质量控制。 相似文献
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建立同时测定4种氟喹诺酮类抗菌物(左氧氟沙星、培氟沙星、沙拉沙星和洛美沙星)的高效毛细管电泳(HPCE)法。考察了缓冲液离子浓度和pH、分离电压、运行温度等电泳参数,确立了最佳的电泳条件:缓冲液为10 mmol/L磷酸二氢钾-20 mmol/L硼砂(pH9.0,内含35mmol/L SDS),紫外检测波长278 nm,分离电压28 kV,运行温度25℃。结果表明,4种药物在8min内得到完全分离,分离度R为1.2以上。方法精密度(RSD)为0.22%~0.26%(迁移时间)和1.36%~2.39%(峰面积),回收率99.60%以上。该法快速、简便、准确。 相似文献
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毛细管电泳技术在兽药和农药残留检测中的应用 总被引:1,自引:0,他引:1
随着养殖业和农业的发展,兽药和农药残留对食品安全的危害日益受到人们的重视,由于检测技术的不断完善,多残留检测技术已逐渐占据残留检测中的主导地位。毛细管电泳技术作为一种高效、快速的分离技术已得到广泛应用。文章就毛细管电泳技术在兽药和农药多残留检测分析中的应用做一介绍。 相似文献