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去甲肾上腺素放射酶学的简化测定
MICRODETERMINATION OF NORADRENALINE BY A SIMPLIFIED RADIOENZYMATIC ASSAY
【摘要】 <正> 去甲肾上腺素(NA)用荧光法或生物检定法测定,灵敏度达纳克(ng)水平;用放射酶学法测定可达皮克(pg)水平,后法已广泛应用于血液或其他体液中NA或儿茶酚胺的测定。本文系根据Henry法加以改进,为使实验简便易行,简化一些步骤,如省略磷钨酸沉淀和甲苯提取步骤,并改用过氯酸洗脱液直接在亲水性闪烁液中测量,既节约时间和试剂,又不影响测定的灵敏度。操作简便,可用来测定血液、体液、灌流液和组织中的微量
【Abstract】 A simplified radioenzymatic assay for noradrenaline (NA) was recommended by utilizing S-adensyl-L-(3H-OH3)-methionine and partially purified adrenal phenyl-ethanolamine-N-methyl-transferase. This modified method was highly specific and sensitive to 20 pg of NA, and could be applied to determine minute amount of NA in blood, body fluid, perfusate and small piece of tissue.
- 【文献出处】 上海第一医学院学报 , 编辑部邮箱 ,1981年04期
- 【被引频次】7
- 【下载频次】34