L-Lactic Acid (LA) Colorimetric Assay Kit
L-乳酸(LA)比色法测试盒
规格: | / 50 assays(48 samples) / 100 assays(96 samples) |
价格: | / ¥580 / ¥1040 |
货号:E-BC-K044-S
检测仪器及波长: 紫外-可见光分光光度计(530 nm)
样本类型: 血清(浆);细胞上清;组织;细胞
检测原理
以氧化型辅酶Ⅰ(NAD+)为氢受体,乳酸脱氢酶(LDH)催化乳酸脱氢产生丙酮酸,使NAD+转化为还原型辅酶Ⅰ(NADH)。其中N-甲基吩嗪甲基硫酸盐(PMS)递氢使氯化硝基四氮唑蓝(NBT)还原为紫色呈色物,呈色物的吸光度在530 nm时与乳酸含量呈线性关系。
关键信息
样本类型 | 血清(浆);细胞上清;组织;细胞 |
灵敏度 | 0.05 mmol/L |
检测范围 | 0.05-6.0 mmol/L |
精密度 | 批间差:1.9%批内差:1.1% |
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,需选择样本之间差异较大的2-3例稀释成不同浓度进行预实验,结合本试剂盒的检测范围0.05-6.0 mmol/L,选取最佳稀释倍数,进行正式批量实验。不同样本的稀释比例范围如下表(仅供参考):
样本 |
稀释倍数 |
样本 |
稀释倍数 |
人血清 |
4-8 |
大鼠血清 |
4-8 |
10%小鼠肌肉匀浆 |
2-4 |
HePG2细胞匀浆(1.388 gprot/L) |
4-8 |
10%小鼠肝匀浆 |
不稀释 |
HepG2细胞上清 |
2-4 |
注:稀释液为双蒸水或生理盐水(0.9% NaCl)。
相关产品
货号 | 产品名称 |
---|---|
E-BC-K043-S | L-乳酸(LA)比色法测试盒(测全血) |
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