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蒸发光散射检测

蒸发光散射检测的相关文献在1999年到2022年内共计117篇,主要集中在药学、化学、中国医学 等领域,其中期刊论文97篇、会议论文11篇、专利文献1298607篇;相关期刊53种,包括中成药、药物分析杂志、中国抗生素杂志等; 相关会议9种,包括第七届国际葡萄与葡萄酒学术研讨会、第13届离子色谱学术报告会、第三届中国中西部地区色谱学术交流会等;蒸发光散射检测的相关文献由442位作者贡献,包括阎超、王玉红、丁明玉等。

蒸发光散射检测—发文量

期刊论文>

论文:97 占比:0.01%

会议论文>

论文:11 占比:0.00%

专利文献>

论文:1298607 占比:99.99%

总计:1298715篇

蒸发光散射检测—发文趋势图

蒸发光散射检测

-研究学者

  • 阎超
  • 王玉红
  • 丁明玉
  • 周君裔
  • 丁洪流
  • 张琳
  • 徐燕
  • 曹进
  • 李培
  • 李灿
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 梁雪; 田芳; 蔡小堃; 毛颖异; Nick A.Cellar; 赵艳荣; 朱惠莲
    • 摘要: 建立并优化高效液相色谱-蒸发光散射法(HPLC-ELSD)用于测定母乳和牛乳中5种主要磷脂-磷脂酰乙醇胺(PE)、磷脂酰肌醇(PI)、磷脂酰丝氨酸(PS)、磷脂酰胆碱(PC)和鞘磷脂(SM)的质量浓度,并初步探讨母乳和牛乳中磷脂质量浓度和组成的差异.采用氯仿-甲醇混合液(2:1,体积比)提取乳样中的磷脂,经过盐溶液净化、再次提取、氮气蒸发、复溶等步骤,通过HPLC-ELSD进行定量测定.结果表明:母乳样品的总磷脂质量浓度显著高于3种不同生产工艺的全脂牛乳(P<0.05),同时发现,母乳磷脂与牛乳磷脂构成相似,其中以PE、PC和SM为主(约占磷脂总量的80%).总之,我们建立的方法具有良好的准确性和精密度,其分析范围、检出限(LOD)、定量限(LOQ)均能满足母乳和牛乳中磷脂的检测要求,是常规分析中鉴定和定量5类磷脂的一种快速、可靠的方法.
    • 谷华; 丁孝良; 孙宝军
    • 摘要: 目的:采用高效液相-蒸发光散射检测(HPLC-ELSD)玉屏风散颗粒中黄芪甲苷和甘露醇的含量,为玉屏风散的质量控制提供实验基础.方法:采用色谱柱出自Waters公司,型号为XBridge-Amide,规格:4.6 mm×150 mm,色谱柱填料颗粒直径3.5μm;流动相:乙腈(A)-水溶液(B,其中含少量甲醇),流速1 mL/min;梯度洗脱流程见表1;柱温30°C;蒸发光检测器:以氮气为载气,流速202.7 kPa,漂移管温度110°C,撞击器为"on".常规对高效液相色谱仪进行方法学的严谨考察,包括专属性试验、精密度试验、稳定性试验、重复性试验、线性回归试验和加样回收试验.在高效液相色谱仪方法学严谨的前提下,对玉屏风散颗粒进行样品分析研究,并测定其中黄芪甲苷和甘露醇的含量.结果:1)专属性试验结果显示:阴性对照品溶液1在与甘露醇对照品溶液和玉屏分散供试品溶液色谱图相同时间处未见相同色谱峰;阴性对照品2在与黄芪甲苷对照品溶液和供试品溶液色谱图相同时间处未见相同色谱峰.提示甘露醇和黄芪甲苷均具有良好的专属性.2)线性回归结果显示:黄芪甲苷的线性范围为1.1~5.1 mg,其回归方程为:Y=0.732X-4.136(r=0.9997);同黄芪甲苷线性回归方法得,甘露醇在1.967~19.674μg范围内具有良好的线性关系,得到甘露醇回归方程为Y=1.587X+4.983(r=0.9996).3)精密度试验结果显示,黄芪甲苷RSD=0.58%,甘露醇RSD=0.36%表明高效液相仪器精密度良好.4)本研究稳定性结果显示黄芩甲苷峰面积的RSD=0.84%,甘露醇峰面积的RSD=0.70%,符合色谱峰相对峰面积的RSD<3%则说明稳定性良好,提示玉屏风散供试品溶液24 h内稳定性良好.5)本研究结果显示色谱峰相对峰面积RSD平均值1.76%,各色谱峰相对峰面积的RSD<3%表示重复性良好,提示玉屏风散供试品溶液的重复性良好.6)结果显示黄芪甲苷对照品溶液、甘露醇对照品溶液平均回收率分别为100.608%、103.487%,RSD分别为0.93%、0.47%,提示高相液相检测方法所测加样回收率结果可靠.7)3个不同批次的玉屏风散中黄芪甲苷成分和甘露醇成分的含量未见明显差异,黄芪甲苷和甘露醇含量平均值分别为0.961 mg/g和0.099 mg/g.结论:高效液相-蒸发光散射检测方法操作简便准确,重复性和稳定性均良好,可作为测定玉屏风散颗粒中黄芪甲苷和甘露醇含量的测定方法.
    • 孙婉瑾; 熊义涛; 段雪云; 续力民; 杨春宝
    • 摘要: 目的 建立高效液相法测定脑脉通颗粒中黄芪甲苷的含量测定方法,提高原制剂质量标准,为脑脉通颗粒的后续研究奠定基础.方法 蒸发光散射检测器检测,采用Agilent TC C18色谱柱(250 mm×4.6mm,5μm);以乙腈-水(36∶ 64)为流动相;空气发生器气压30 psi,喷雾器冷却模式,漂移管60°C.结果 黄芪甲苷在2.8~16.8 μg范围内线性关系良好,精密度、稳定性、重现性均符合要求,回收率达99.06%.结论 该检测方法稳定可行,可用于脑脉通颗粒中黄芪甲苷的含量测定.
    • 李响; 李永红; 于雷; 贾春翠; 周勇; 饶春明
    • 摘要: 目的 建立定量测定重组人IL-12注射液中泊洛沙姆188的HPLC分析方法.方法 采用Waters Alliance系统、蒸发光检测器、赛分Poly RP-100色谱柱,以0.1%TFA水溶液(A)-0.1%TFA乙腈溶液(B)作为流动相梯度洗脱:0~5 min,50%A→50%A;5~6min,50%A→5%A;6~12min,5%A→5%A;12~13 min,5%A→50%A;13~20min,50%A→50%A.体积流量1.0 mL/min,柱温30°C测定重组人IL-12注射液中泊洛沙姆188.结果 HPLC法测定泊洛沙姆188的保留时间RSD(n=6)为0.19%,峰面积RSD (n=6)为1.7%.泊洛沙姆188在低(50%)、中(100%)、高(150%)个浓度的回收率分别为93.3%、93.1%、93.8%,平均回收率为93.4%.泊洛沙姆188在1.5~9 μg (r>0.99)与峰面积呈良好的线性关系.结论 建立了重组人IL-12注射液中泊洛沙姆188含量检测的高效液相色谱法,并对建立的分析方法进行专属性、准确度、精密度、检测限、定量限、线性、范围和耐用性的验证,测定了3批重组人IL-12注射液中的泊洛沙姆188的量.
    • 陈其钊; 陈红香; 陈嘉敏; 王桂华; 李家威; 郭剑雄
    • 摘要: 采用超高效液相色谱-蒸发光散射检测(UPLC-ELSD)技术,建立了测定蜂蜜中4种单双糖含量的方法.以XBridge(R)BEH Amide XP(2.1 mm×150 mm,2.5 μm)为色谱柱,0.2%TEA和乙腈作为流动相,流速为0.5 mL/min,柱温为50°C,ELS为检测器,漂移管温度为50°C,喷雾管能量50%(30°C),N2压力为172 kPa,增益800.实验表明,4种单双糖化合物在线性范围内线性关系良好,线性相关系数(R2)均大于0.9975;目标物的检出限(S/N≥3)为0.0075 ~ 0.016 mg/mL;3个加标水平下的回收率为97.2% ~103.2%,相对标准偏差为1.8% ~ 4.0%.此方法简单快速、分离效果好、分析成本低,是一种测定蜂蜜样品中4种单双糖的优良方法,且检测结果与国家标准方法保持一致.
    • 逄世峰; 李亚丽; 许世泉; 郑培和; 崔丽丽; 王英平
    • 摘要: 建立超高效液相色谱-蒸发光散射法,同时测定人参中果糖、葡萄糖、蔗糖、麦芽糖的含量.色谱柱:ACQUITYUPLCBEHAmide(2.1mm×100mm,1.7μm);流动相:0.2%三乙胺乙腈溶液和水梯度洗脱;流速:0.2mL/min;检测器:ELSD;漂移管温度:75°C;氮气压:30psi.果糖、葡萄糖、蔗糖和麦芽糖在0.1mg/mL~0.8mg/mL内有良好的线性关系,精密度RSD<5.0%,回收率>96.0%.本方法在7min内完成了4种糖的分离,结果比较理想,可作为人参中小分子糖的质量控制和安全评价的测定方法.%A method for the simultaneous determination of 4 sugars such as fructose,glucose,sucrose and maltose in ginseng is described,in which ultra performance liquid chromatography and evaporative light scattering detectionare used.A acquity uplc BEH Amide (2.1 mm× 100mm,1.7μm)column kept at 35 °C and eluted with 0.2% TEA acetonitrile solution and aqueous at a flow rate of 0.2mL/min was used for the chromatographic separation.The detector drift tube was kept at 75°C and the nitrogen pressure was set at 30 psi.The response of the detector to analyte concentration over the range from 0.1 mg/mL to 0.8mg/mL displayed good linearity.Precision RSDs of 6 replicates for the determination of the sugars were less than 5.0% and mean recoveries for the sugars in 6 real samples were more than 96.0%.A good separation among the analytes and other components was achieved within 7 min.This method is accurate and good reproducibility suitable for the measurement of four sugars in the roots of ginseng.
    • 李正义; 晏培培; 殷晓伟; 王鹏飞; 殷乐; 孙小强
    • 摘要: Objective:Etimicin (ETM) and its various impurities were analyzed by an HPLC-ELSD method,and the impurities were further separated and purified for the structural identification.Methods:HPLC-ELSD analysis was applied on the Ultimate LP C18 column (250 mm × 4.6 mm,5 μm),0.2 mol· L-1 trifluoroacetic acid aqueous solution-methanol (84 ∶ 16) as the mobile phase with the flow rate of 6 mL· rin-1,and the drift tube temperature of 65 °C.Preparative HPLC was applied,using methanol-water (80 ∶ 20) as the mobile phase with the flow rate of 0.8 mL· min-1 for MS analysis.The structures of prepared impurities in etimincin were determined by 1D and 2D NMR analysis with D20 as solvent.Results:Four trace impurities (≤ 0.03%) were separated and purified.And their structures were 1-N-ethyl gammine,1-N-ethyl-3',4'-di-deoxy neamine,1-N-ethyl-3"-N-demethyl gentamicin C1a and 1-N-ethyl micronomicin,respectively,which were identified by MS and NMR.Conclusion:The coupling technique of HPLC-ELSD with HPLC preparation can be applied in rapid detecting,separating and purifying trace impurities.The structural characteristics of ETM and impurities have been comparatively studied in detail by means of 1D and 2D NMR technologies.Then a rapid and accurate structural analysis method for aminoglycoside antibiotics was established.%目的:对依替米星及其杂质进行分离纯化,并对各杂质进行结构确定.方法:采用高效液相色谱-蒸发光散射法,选用Ultimate LP C18色谱柱(250 mm×4.6mm,5μm),以0.2 mol· L-1三氟乙酸溶液-甲醇(84∶16)为流动相,流速0.5 mL·min-1,漂移管温度65°C,进行HPLC-ELSD分析;采用UltimateLP-C18色谱柱(250mm×21.2 mm,5μm),以0.2 mol·L-1三氟乙酸水溶液-甲醇(90∶ 10)为流动相,流速6mL·min-1,ELSD为检测器,进行HPLC制备分离;以甲醇-水(80∶20)为流动相,流速0.8 mL· min-1,进行MS分析;以D20为溶剂,采用一维和二维核磁共振谱,对制备得到的杂质进行结构测定.结果:制备分离出4种微量杂质(≤0.03%),MS及NMR分析确定了它们的结构分别为1-N-乙基加洛糖胺、1-N-乙基-3',4'-二脱氧新霉胺、1-N-乙基-3"-N-脱甲基庆大霉素C1a,1-N-乙基小诺霉素.结论:通过HPLC-ELSD及其HPIC制备分离方法的联用,能迅速检测并分离纯化出微量杂质;综合运用各种一维和二维核磁共振技术对依替米星(ETM)及其杂质的结构进行对比分析,建立了一种快速、准确分析氨基糖苷类抗生素结构的方法.
    • 金司阳; 刘寒; 郭慧; 王振月
    • 摘要: OBJECTIVE:To determine the content of 17 amino acid in sarcocarp of northeast Empetrum nigrum simultaneous-ly. METHODS:HPLC-ELSD method was adopted. The determination was performed on Waters Symmetry C18 column with mobile phase consisted of 5.0 mmol/L heptafluorobutyric acid solution(containing 0.7% trifluoroacetic acid)-acetonitrile(gradient elution) at the flow rate of 2.0 L/min,the column temperature was 37 °C,the drift tube temperature was set at 60 °C. RESULTS:The line-ar ranges of glycine,serine,aminosuccinic acid,aminopropionic acid,threonine,glutamic acid,cystinol,diaminocaproic acid, histidine,arginine,proline,valine,methionine,oxyphenylaminopropionic acid,isoleucine,aminocaproic acid,phenylalanine were 0.0059-0.1877,0.0082-0.2628,0.0104-0.3328,0.0070-0.2227,0.0093-0.2978,0.0115-0.3678,0.0094-0.3004,0.0114-0.3655,0.0121-0.3880,0.0136-0.4355,0.0090-0.2878,0.0092-0.2930,0.0117-0.3730,0.0142-0.4530,0.0103-0.3280, 0.0103-0.3280 and 0.0129-0.4130 mg/mL(all r>0.9990). RSDs of precision,stability and repeatability tests were not all less than 2.0%. Recoveries were 98.0%-101.2%(RSD0.9990);精密度、稳定性、重复性试验的RSD≤2.0%;加样回收率为98.0%~101.2%(RSD均<2.0%,n=6).结论:该方法操作简便,精密度、稳定性、重复性好,可用于东北岩高兰果中17种氨基酸含量的同时测定.
    • 方光伟; 何建仁; 陈忍; 黄萍; 林中
    • 摘要: 目的 建立高效液相色谱-蒸发光散射检测器(high performance liquid chromatography-evaporative light scattering detection,HPLC-ELSD)同时检测食品中安赛蜜、糖精钠、甜蜜素、三氯蔗糖、阿斯巴甜、阿力甜、索马甜、纽甜、甜菊糖苷9种甜味剂的方法.方法 样品中的甜味剂经水提取后利用固相萃取柱净化浓缩,以C18(250 mm×4.6 mm,5μm)柱分离,经流动相梯度洗脱后,采用HPLC-ELSD法进行测定.结果 9种甜味剂在20~500 mg/L的质量浓度范围内,具有良好的线性关系(相关系数大于0.99),在3个添加水平下样品的平均回收率为87.2%~107.1%,相对标准偏差小于4.0%,该方法中三氯蔗糖、阿斯巴甜、阿力甜、索马甜、纽甜和甜菊糖苷的检出限为5 mg/kg,安赛蜜、糖精钠和甜蜜素的检出限为10 mg/kg.结论 本方法简单、准确、灵敏,是同时检测食品中9种甜味剂的有效方法.%Objective To establish a method for simultaneous determination of 9 kinds of sweeteners (acesulfame-K, saccharin sodium, sodium cyclamate, sucralose, aspartame, alitame, thaumatin, neotame and stevioside) in food by high performance liquid chromatography with evaporative light scattering detection (HPLC-ELSD). Methods The sweeteners were extracted by water. The extract of sample was cleaned up and concentrated with solid phase extraction cartridge. The sweeteners were separated on a C18 column (250 mm×4.6 mm, 5 μm) and determined by HPLC-ELSD after gradient elution with mobile phase. Results The linear range of the method was 20~500 mg/L with the linear correlation coefficients above 0.99. The average recoveries were from 87.2% to 107.1% at 3 spiked levels and the relative standard deviations were lower than 4.0%. The limits of detection were 5 mg/kg for sucralose, aspartame, alitame, thaumatin, neotame and stevioside, and 10 mg/kg for acesulfame-K, saccharin sodium and sodium cyclamate, respectively. Conclusion This method is simple, accurate and sensitive,which is an effective method for simultaneous determination of 9 kinds of sweeteners in food.
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