目的采用离子色谱法测定乳酸钠林格注射液中的总钠、钾和钙。方法色谱柱为Dionex Ion Pac CS12A（250 mm×4.6 mm）,洗脱液为以20 mmol·L^-1甲烷磺酸溶液,流速1.2 m L·min^-1,采用电导检测器,CSRSTM300自身循环抑制器,抑...目的采用离子色谱法测定乳酸钠林格注射液中的总钠、钾和钙。方法色谱柱为Dionex Ion Pac CS12A（250 mm×4.6 mm）,洗脱液为以20 mmol·L^-1甲烷磺酸溶液,流速1.2 m L·min^-1,采用电导检测器,CSRSTM300自身循环抑制器,抑制电流为60 m A,柱温30℃,池温35℃,进样量25μL。结果 3种离子的分离良好,钠离子0~100μg·m L^-1（r=0.9999）、钾离子0~10μg·m L^-1（r=0.9999）、钙离子0~5μg·m L^-1（r=0.9995）与峰面积的线性关系良好;平均回收率为100.3%~101.4%（n=9）。结论所用方法准确、简便、快速,重复性好,可用于乳酸钠林格注射液中的总钠、钾和钙的测定。展开更多
Inclusion has an important effect on quality of high speed rail steel. In consideration of the lower acceptance percentage of the inclusion and its constraint against the requirement for large scale production of 350 ...Inclusion has an important effect on quality of high speed rail steel. In consideration of the lower acceptance percentage of the inclusion and its constraint against the requirement for large scale production of 350 km/h high speed rail steel in Panzhihua Iron and Steel （Group） Co,the technology of nonmetallic inclusion control for 350 km/h high speed rail steel was studied. An optimized model of the argon-blowing in ladle furnace （LF）,the control of the components of the ladle slag,and the technique of calcium treatment for the molten steel was brought forward. Using the researched technology,the removal ratio of the inclusion was increased and the components,distribution,and shape of the inclusion in the rail steel were changed,which resulted in a reduction in the average total oxygen content to 10.17×10^-6 and an increase in the comprehensive acceptance percentage of the nonmetallic inclusion from 48.21% to 98.1%. Test has shown that this metallurgical technology can meet the requirement for large scale production of 350 km/h high speed steel in Panzhihua Iron and Steel （Group） Co.展开更多
文摘目的采用离子色谱法测定乳酸钠林格注射液中的总钠、钾和钙。方法色谱柱为Dionex Ion Pac CS12A（250 mm×4.6 mm）,洗脱液为以20 mmol·L^-1甲烷磺酸溶液,流速1.2 m L·min^-1,采用电导检测器,CSRSTM300自身循环抑制器,抑制电流为60 m A,柱温30℃,池温35℃,进样量25μL。结果 3种离子的分离良好,钠离子0~100μg·m L^-1（r=0.9999）、钾离子0~10μg·m L^-1（r=0.9999）、钙离子0~5μg·m L^-1（r=0.9995）与峰面积的线性关系良好;平均回收率为100.3%~101.4%（n=9）。结论所用方法准确、简便、快速,重复性好,可用于乳酸钠林格注射液中的总钠、钾和钙的测定。
基金Sponsored by Key Technologies Research and Development Program for the 10th Five-Year Plan (2004BA317B)
文摘Inclusion has an important effect on quality of high speed rail steel. In consideration of the lower acceptance percentage of the inclusion and its constraint against the requirement for large scale production of 350 km/h high speed rail steel in Panzhihua Iron and Steel （Group） Co,the technology of nonmetallic inclusion control for 350 km/h high speed rail steel was studied. An optimized model of the argon-blowing in ladle furnace （LF）,the control of the components of the ladle slag,and the technique of calcium treatment for the molten steel was brought forward. Using the researched technology,the removal ratio of the inclusion was increased and the components,distribution,and shape of the inclusion in the rail steel were changed,which resulted in a reduction in the average total oxygen content to 10.17×10^-6 and an increase in the comprehensive acceptance percentage of the nonmetallic inclusion from 48.21% to 98.1%. Test has shown that this metallurgical technology can meet the requirement for large scale production of 350 km/h high speed steel in Panzhihua Iron and Steel （Group） Co.
