摘要
目的探讨去甲肾上腺素（NE）在肝移植手术中应用的可行性及对心、肾功能的影响。方法择期行经典非转流原位肝移植术的晚期肝硬化40例,随机分为去甲肾上腺素组（N组）和多巴胺组（D组）,术中分别持续输注NE和多巴胺,两组分别于切皮前（T1）、切皮后1 h（T2）、无肝期30 min（T3）、新肝期1 h（T4）及新肝期4 h（T5）监测血流动力学指标、肾功能和心肌酶。结果两组各时点MAP均维持在目标范围内;T3时,N组MAP高于D组,心率（HR）低于D组（P〈0.05）;T2时β2-MG N组明显低于D组（P〈0.05）。T3时两组患者血清CK浓度升高（P〈0.05）;T4～5时各心肌酶值均显著升高（P〈0.05）。结论晚期肝硬化患者行肝移植手术,NE能较好地维持血液动力学稳定且对心率影响较小,而且未见NE对肾功能和心肌酶有不利影响。
Chromium（Ⅵ） in samples of electric and electronic equipment was extracted with toluene/alkaline solution,and the alkaline extract was passed through a cation-exchange resins column.After the eluate was diluted,chromium（Ⅵ） was determined by atomic fluorescence spectrometry（AFS）.The working parameters were optimized.The recovery of the method was in the range of 90.5%~99.0% and the RSD was 5%.The method is accurate and suitable to be used for the determination of chromium（Ⅵ） in electrical and electronic equipment.The current situation of national and international standards for the determination of chromium（Ⅵ） by AFS is discussed.
出处
《分析仪器》
CAS
2012年第1期97-101,共5页
Analytical Instrumentation
