高效液相色谱法测定尿中海洛因代谢产物

本文介绍了从吸食海洛因的吸毒者尿中提取海洛因主要代谢产物吗啡的液相提取法。并建立了用反相高效液相色谱法分离、检测尿中吗啡的定量分析方法。其检测波长为２１０ｎｍ，最低检测限为０．３ｎｇ／１０ｕｌ，线性范围为３０ｎｇ－１ｕｇ。     

胸水中多胺的高效液相色谱测定

本文采用丹酰氯试剂作为柱前衍生剂，用反相高效液相色谱法检测胸水中多胺的浓度。实验条件：荧光激发波长３４０ｎｍ，发射波长５１５ｎｍ。液动相为甲醇－水，本法测得多胺的回收率为：腐胺９３％￣１０７％，精脒８９％￣１０３％，精胺９８％￣１０５％。变异系数分别为：腐胺７．４％￣９．５％，精脒４．３％￣６．１％，精胺３．３％￣４．２％，方法稳定，可靠。     

血液灌流对硫线磷和硫酸阿托品的吸附作用

Objective To study on adsorption effect of cadusafos and atropine sulfate by hemoperfusion.Method Hemoperfusions were performed for sheep blood samples with cadusafos and atropineby through imitated extracorporeal closed circulating perfusion apparatus.Residual cadusafos was determined by gas chromatography and residual atropine was determined by high performance liquid chromatography.Result Dose of adsorption agent was 0.5,1.0 and 1.5 g,respectively.Two hours after hemoperfusion with membrane coated activated charcoal,clearance rate of cadusafos in 3 groups all exceeded 90%.and clearance rate of atropine sulfate was 61.9%,84.9%,88.9%,respectively.One and a half hours after hemoperfusion with HA230 absorption resin,clearance rate of eadusafos in 3 groups all exceeded 90%,and clearance rate of atropine sulfate was 88.0%,97.2%,98.4%,respectively.Three hours after hemoperfusion with membrane coated activated charcoal,The concentration ratio of cadusafos and atropine sulfate in blood promoted to 10.1 times,and the ratio was 6.7 times after hemoperfusion with HA230 absorption resin.Conclusion It suggested that cadusafos were mostly removed from blood after 1.5～2.0hours hemoperfusion with membrane activated charcoal or HA230 absorption resin.The concentration ratio of cadusafos and atropine sulfate in blood will increased after hemoperfusion.     

大鼠血浆及组织中阿霉素含量测定方法

目的建立测定大鼠血浆及组织中阿霉素含量的方法,以揭示脂质体阿霉素的靶向性及体内的药物动力学特性。方法采用高效液相色谱法。色谱柱为Nova-Pak,C18柱(150mm×3.9mm,粒径为4μm);流动相为甲醇-乙腈-0.01mol·L-1磷酸二氢铵-冰醋酸（体积比为50∶22∶28∶0.6）;流速1.0ml*min-1;激发波长479nm,发射波长587nm;柱温30℃。结果血浆阿霉素线性范围为2.32～1160.00μg·L-1,线性相关系数r=0.9998（n=8）;组织阿霉素为0.027～5.4μg·g-1,线性相关系数r=0.9995（n=7）;血浆阿霉素RSD为2.40%～4.22%,组织阿霉素为1.98%～9.17%。血浆及组织内药物平均回收率分别为100.41%和95.6%。血浆中阿霉素最低检测浓度为2μg·L-1,组织中为0.027μg·g-1。结论此方法灵敏度高、省时、简单、方便。     

多发性骨髓瘤负性相关基因DAZAP2蛋白高效表达和纯化

目的在前期的研究中，DAZAP2基因在多发性骨髓瘤（Multiple myeloma，MM）患者中表达明显下调，可能为MM的负性基因．须进一步获得DAZAP2蛋白，制备抗体，从而在蛋白水平上研究DAZAP2的表达、结构和功能．方法将原核重组质粒pQE30－DAZAP2转化大肠杆菌，阳性菌株经1 mmol／LIPTG诱导表达目的蛋白，再经过纯化和透析结果IPTG诱导4hr时，得到大量重组目的蛋白，占可溶蛋白的20％左右，经过Ni—NTA层析柱纯化。获得分子量为17kD的DAZAP2蛋白浓度为0．97mg／m1．结论DAZAP2蛋白获得高效表达，并且建立快速简便的纯化方法，目的蛋白可以用于下一步的实验．