Lactate Dehydrogenase (LDH) Activity Assay Kit
乳酸脱氢酶(LDH)比色法测试盒
规格: | / 100 assays(43 samples) |
价格: | / ¥320 |
货号:E-BC-K046-S
检测仪器及波长: 紫外-可见分光光度计(450 nm)
样本类型: 血清;血浆;组织;细胞等样本
检测原理
以辅酶I为递氢体,LDH催化乳酸产生丙酮酸,丙酮酸与2,4-二硝基苯肼作用生成丙酮酸二硝基苯腙,后者在碱性溶液中呈棕红色,颜色的深浅与丙酮酸的浓度呈正比,通过测定OD值,可计算LDH的活力。
关键信息
指标简称 | LDH |
样本类型 | 血清;血浆;组织;细胞等样本 |
灵敏度 | 4 U/L |
检测范围 | 4-400 U/L |
精密度 | 批间差:7.2%批内差:2.2% |
检测仪器及波长 | 分光光度计 |
保存条件 | 2-8℃ |
有效期 | 6个月 |
样本稀释倍数
在正式检测前,需选择2-3例预期差异大的样本稀释成不同浓度进行预实验,根据预实验的结果,结合本试剂盒的检测范围(4-400 U/L)处理样本,请参考下表稀释:
样本 |
稀释倍数 |
样本 |
稀释倍数 |
人血清 |
10-15 |
大鼠血清 |
20-30 |
人血浆 |
10-15 |
大鼠血浆 |
20-30 |
猪血清 |
20-30 |
10%小鼠肾组织 |
500-800 |
10%大鼠肝组织 |
800-1000 |
10%大鼠肺组织 |
300-500 |
注:稀释液为生理盐水(0.9% NaCl)或PBS (0.01 M,pH 7.4)。
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