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- 详细信息
- 询价记录
- 文献和实验
- 技术资料
- 保存条件:
2-8℃
- 保质期:
6个月
- 英文名:
Glutathione Peroxidase (GPX) Assay Kit
- 库存:
99
- 供应商:
北京索莱宝科技有限公司
- CAS号:
BC1190-50T/24S
- 规格:
50T/24S
谷胱甘肽过氧化物酶(glutathione peroxidase, GSH-Px或GPX,EC.1.11.1.9)是机体内广泛存在的一种重要的过氧化物分解酶。GPX根据酶活性中心的不同可分为两类,一类以硒代半胱氨酸为活性中心,一类以半胱氨酸为活性中心,前者存在于大部分生物体内。GPX可以清除生物体内产生的过氧化氢、脂质过氧化物等,减轻氧化产物对机体的毒害作用,是生物体内抗氧化系统的重要组成部分。本试剂盒检测的是以硒代半胱氨酸为活性中心的GPX活性。 GPX催化有机过氧化物氧化GSH,产生GS-SG,GSH能与DTNB生成在412nm处有特征吸收峰的化合物,412nm下吸光度的下降即可反应GPX的活性 。



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PMID37996471
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度。 (2) 吸收系数法 按各品种项下的方法配制供试品溶液,在规定的波长处测定其吸收度,再以该品种在规定条件下的吸收系数计算含量。用本法测定时,应注意仪器的校正和检定。 (3) 计算分光光度法 采用计算分光光度法应慎重。本法有多种,使用时均应按各品种项下规定的方法进行。当吸收度处在吸收曲线的陡然上升或下降的部位测定时,影响精度的因素较多,故对照品和供试品测试条件应尽可能一致。若测定时不用对照品,如维生素A测定法,则应在测定时对仪器作仔细的校正和检定。
蛋白的考马斯亮兰溶液连续进样6次,得到吸光度的相对标准偏差。表1 精密度测定结果 2.3 稳定性 取1mg/ml牛 血清 蛋白标准溶液每十分钟测定一次,50分钟内的吸光度变化如下表2。表2 稳定度测定结果 3. 结论该方法测定快速、简便,干扰物少,是目前灵敏度较高的蛋白质含量测定的紫外分光光度法。
上海西唐生物科技有限公司 021-55229872, 65333639 www.westang.com 人谷胱甘肽过氧化物酶3 ( GPX3 )ELISA 试剂盒 ( 用于血清、血浆、细胞培养上清液和其它生物体液内 ) 原理 本实验采用双抗体夹心 ABC-ELISA 法。用抗人 GPX3 单抗包被于酶标板上,标准品和样品中的 GPX3与单抗结合,加入生物素化的抗人
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