共查询到19条相似文献,搜索用时 234 毫秒
1.
《分析试验室》2017,(2)
建立了同时测定血浆中吲哚美辛和布洛芬两种非甾体抗炎药的HPLC测定方法。样品采用乙腈沉淀蛋白提取后离心,上清液用氮气吹干流动相复溶,以乙腈:20 mmol/L乙酸铵水溶液(甲酸调节p H为3.5)=85:15(V/V)进行洗脱,在ZORBAX SB-C18(4.6 mm×250 mm,5μm)色谱柱上分离,流速为1 m L/min,检测波长220 nm,采用内标法定量,吲哚美辛和布洛芬互为内标。结果表明吲哚美辛和布洛芬在0.1~50μg/m L范围内呈良好的线性关系,吲哚美辛和布洛芬的检出限(S/N=3)分别为1.3 ng和2.0 ng。回收率在86.3%~102.0%之间,日内精密度RSD3.4%。经方法学验证,该方法适用于血浆样品中吲哚美辛和布洛芬的测定,且方法专属性好、简便快捷。 相似文献
2.
高效液相色谱法测定人血清中5-氟尿嘧啶浓度 总被引:7,自引:0,他引:7
建立了测定人血清中5-氟尿嘧啶的反相高效液相色谱法。采用ZorbaxODS柱4.6mm×250mm,预柱YWG-C184.6mm×50mm;甲醇:水(20:80)为流动相,紫外检测波长为273um,喃氟啶为内标定量。回收率为96.85%,田间和日内变异系数分别为537%和438%,血清中最低检测浓度为10μg/L。在0.04~50mg/L浓度范围内线性良好,相关系数为0.9990。 相似文献
3.
建立了制剂和体液中吲哚美辛的毛细管电泳高频电导分析法,并用于吲哚美辛肠溶片、复方吲哚美辛酊及血清、尿液中吲哚美辛含量的测定。对电泳介质的种类、浓度以及操作电压和进样量等影响因素进行了优化。实验采用3.0mmol/L乳酸+0.68mol/L乙醇为电泳介质,分离电压为20.0kV,可在10min内实现对吲哚美辛的分离检测。在最佳实验条件下,吲哚美辛的线性范围为0.05μg/mL—100μg/mL,检出限为0.01μg/mL,回收率92.0%-105.1%。 相似文献
4.
报道了一条合成阿西美辛的新路线。以吲哚美辛为起始原料,先与溴乙酸苄酯反应制得阿西美辛苄酯,然后在AlCl3催化下选择性脱除苄基得阿西美辛粗品,最后用丙酮和水重结晶制得阿西美辛一水合物(Acn·H2O, CCDC: 1856291); Acn·H2O于80 ℃真空干燥24 h得阿西美辛,其结构经1H NMR和13C NMR确证。采用XRD表征了Acn·H2O的晶体结构。结果表明:Acn·H2O属三斜晶系,P-1空间群,晶胞参数a=7.773(3) , b=10.222(4) , c=13.517(5) , α=97.306(6)°, β=96.162(6)°, γ=106.944(6)°。 相似文献
5.
6.
运用伏安法研究了吲哚美辛在单壁碳纳米管修饰电极上的电化学行为.在0.1 mol/L HAc-NaAc缓冲溶液(pH 4.5)中,吲哚美辛于0.91 V (vs.SCE)电位处有一个峰形很好的氧化峰.与裸玻碳电极相比,吲哚美辛在修饰电极上的电位正移了约30 mV,峰电流增加了近10倍,表明该修饰电极对吲哚美辛有较强的电催化作用.搅拌条件下开路富集2 min,氧化峰电流与吲哚美辛在5.5×10-7~1.1×10-5 mol/L浓度范围内呈良好的线性关系,检出限为1.1×10-7 mol/L.该方法可用于药剂中吲哚美辛的分析. 相似文献
7.
反相高效液相色谱法测定人血浆中利培酮及其代谢物的质量浓度 总被引:3,自引:0,他引:3
建立了测定人血浆中利培酮及其活性代谢物9-羟利培酮质量浓度的反相高效液相色谱方法。用Zor-baxODSC18色谱柱,以V(甲醇):V(水):V(1mol/L醋酸铵):V(3mol/L氨水)=300:50:3:1为流动相,检测波长为280nm,流速为0.8mL/min。利培酮的线性范围为2~600μg/L(r=0.996),回收率为(98.2±3.5)%,日内与日间的标准偏差分别为4.12%和4.83%;9-羟利培酮的线性范围为2~800μg/L(r=0.998),回收率为(97.8±3.8)%,日内与日间的标准偏差分别为4.28%和4.81%。 相似文献
8.
酶联免疫吸附分析法测定环境水样中痕量药物吲哚美辛 总被引:1,自引:0,他引:1
将吲哚美辛与蛋白质载体结合,制成完全免疫抗原,经过多次动物免疫得到了性能优良的兔抗吲哚美辛抗体,在优化实验条件的基础上,建立了灵敏度高、特异性强、简便、稳定的测定水样中吲哚美辛的酶联免疫吸附分析方法(ELISA).IC50值(标准曲线中吸光度抑制至最大吸光度值的50%时所对应的待测物浓度)为0.09μg/L~0.17 μg/L,最低检出限为 0.005μg/L~0.01 μg/L.真实水样中,均发现含有吲哚美辛,浓度在0.016 μg/L~0.083 μg/L之间,水样的加标回收率在84.4%~127.0%之间. 相似文献
9.
10.
建立了一种高效液相色谱-荧光检测法用于同时测定血浆中的吲哚与3-甲基吲哚。样本经液液萃取法提取,采用Shim-Pack VP-ODS柱(150 mm×4.6 mm,4.6μm),以15 mmol/L磷酸二氢钠溶液-甲醇(40∶60,v/v)为流动相,甲奈酚为内标,荧光激发和发射波长分别为274 nm和340 nm。吲哚和3-甲基吲哚的线性范围分别为2.22~88.89μg/L和1.11~44.44μg/L;检出限分别为0.11μg/L(吲哚)和0.06μg/L(3-甲基吲哚);平均回收率为95.5%~112.3%,日内与日间相对标准偏差均小于6.8%。利用该方法对妊娠合并乙肝患者(n=29)和正常孕妇(n=46)的血浆进行了测定,结果表明妊娠合并乙肝患者血浆中吲哚和3-甲基吲哚水平均显著高于正常对照组,且与肝损伤指标转氨酶水平呈正相关。 相似文献
11.
A column liquid chromatographic (LC) method using UV detection for the determination of acemetacin and its metabolite indometacin in blood is described. The lower detection limit for both compounds is ca. 25 micrograms/l, the precision (coefficient of variation) is 6% for acemetacin and 10% for indometacin. The method is also suited for determination of both compounds in plasma, precisions in this case are even better than for blood, i.e. around 3% for both acemetacin and indometacin. Blood samples of three volunteers who had received 90 mg of acemetacin orally were analysed using the new method and very good agreement with results from a thin-layer chromatographic/fluorescence method was found. 相似文献
12.
13.
HPLC法测定氯霉素氢化可的松滴耳液中两组分的含量 总被引:1,自引:0,他引:1
采用反相高效液相色谱法,以醋酸泼尼松为内标,UV检测波长为244nm,以YWG-C18为固定相,以甲醇-水(60∶40)为流动相,同时测定了氯霉素氢化可的松滴耳液中氯霉素和氢化可的松的含量,并进行了线性范围和回收率测定,平均回收率(n=6)和相对标准偏差分别为:99.91%和0.86%(氯霉素),99.58%和1.34%(氢化可的松)。 相似文献
14.
高效液相色谱法测定磷酸苯丙哌林片的含量 总被引:4,自引:0,他引:4
采用反相高效液相色谱法 ,以醋酸可的松为内标 ,测定磷酸苯丙哌林片的含量。色谱柱为ODS柱 ,以甲醇 水 冰醋酸 三乙胺溶液 (体积比为 6 0∶35∶5∶0 1)为流动相 ,检测波长为 2 70nm ,磷酸苯丙哌林在 9 96mg/L~ 49 8mg/L范围内有很好的线性关系 (r=0 9998) ,平均回收率为 99 91% (n =5 ) ,RSD =0 43%。 相似文献
15.
Summary The influences of methanol, ethanol, 1-propanol and 1-butanol on the binding constants of -cyclodextrin (-CD) with non-steroidal anti-inflammatory drugs such as acemetacin, indometacin, cinmetacin, sulindac and diclofenac sodium and the separation of these drugs were studied by affinity capillary electrophoresis. No obvious effect was observable upon addition of methanol up to 6% (v/v) in the running buffer, while the addition of other alcohols at the concentration of 2% resulted in obvious decrease in the binding constants of -CD with acemetacin, indometacin, cinmetacin and sulindac. With an increasing chain length of added alcohols, all of these changes increased. Upon additions of different alcohols in the running buffer the change of the binding constant of -CD with diclofenac sodium was inconspicuous. Based on these results, the separation conditions for these drugs were optimized. The presence of 6% methanol in the running buffer containing 3 mM -CD was helpful to the baseline separation of these drugs. The electrophorograms of these drugs in the presence of ethanol, 1-propanol and 1-butanol showed a worse separation due to the decrease in the binding constants. The methods for the separation of these drugs and the study on the binding constants possess the advantages of easy performance, high speed and low sample consumption.
AcknowledgementThe authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (No.20275017), the Science Foundation of Jiangsu (No.BS2001063) and the Key Project of Cancer Institute of Jiangsu Province. 相似文献
16.
Narumol Vachirapatama Miroslav Macka Brett Paull Carsten Mü nker Paul R. Haddad 《Journal of chromatography. A》1999,850(1-2):257-268
A method for the simultaneous separation and determination of Nb(V) and Ta(V) as ternary complexes formed with 4-(2-pyridylazo)resorcinol (PAR) and citrate was developed using ion-interaction reversed-phase high-performance liquid chromatography on a C18 column. Method parameters, such as pre-column complex formation conditions and composition of the complexes were investigated using spectrophotometry and HPLC. Under the optimum conditions, the Nb(V) and Ta(V) complexes were eluted within 12 min with a mobile phase of methanol–water (32:68, v/v) containing 5 mM acetate, 5 mM TBABr and 5 mM citrate buffer at pH 6.5, with detection at 540 nm. A typical separation efficiency was 33 000 and 20 000 theoretical plates per metre for Nb(V) and Ta(V), respectively. The relative standard deviation of retention times for the Nb(V) and Ta(V) complexes were 0.16% and 0.17% and for peak areas were 0.28% and 1.36%, respectively. The detection limits (signal-to-noise ratio=3) for Nb(V) and Ta(V) were 0.4 ppb and 1.4 ppb, respectively. Results obtained for standard reference rock samples agreed well with certified values and results obtained by inductively coupled plasma MS. 相似文献
17.
熊胆中磷脂类化合物的等梯度高效液相色谱法分离分析 总被引:7,自引:4,他引:3
摘要:建立了测定熊胆中3种主要磷脂组分即磷脂酰胆碱(PC)、磷脂酰肌醇(PI)、磷脂酰乙醇胺(PE)的高效液相色谱法。将熊胆风干后研成粉末,经V(氯仿):V(甲醇)=1:4提取液处理后,在P-ESilica柱上进行HPLC分析。流动相为V(乙腈):V(甲醇)=76:24,流速1.5mL/min,紫外检测波长205nm。PC的平均回收率为89.30%,相对标准差RSD=2.0%。在精密度实验中,PI,PC,PE保留时间的RSD分别为3.9%,1.2%,1.9%,峰面积的RSD分别为1.6%,0.89%,2. 相似文献
18.