Carboxylesterase (CarE) Activity Assay Kit
羧酸酯酶活性检测试剂盒
货号:AKFA004M
规格: 110T/100S
检测设备:酶标仪
可检测样本数:100 Samples
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Product Information
Carboxylesterase (CarE) Activity Assay Kit
-20℃ Dry Ice Transportation
  • 检测样本量:100 Samples
  • 主要检测设备及配套:酶标仪/96孔板
  • 预计测定时间:6 h (100 Samples)
  • 试剂储存条件:按照标签要求储存
  • 需自备试剂:
Detection Principle
羧酸酯酶能够催化乙酸-1-萘酯生成萘酯,萘酯进一步与固蓝反应生成偶氮化合物,产物在450 nm处具有特征吸收峰,通过吸光值变化即可表征羧酸酯酶的活性。
  • 检测方法: 固蓝显色法
  • 检测波长: 450 nm
  • 信号响应: 递增型
Notices

①试剂二配制后室温条件下稳定性较差,建议配制和使用过程中始终保持冰上放置,若试剂变色则停止使用;建议测定过程中根据使用量取用试剂二置于冰上放置,剩余试剂应及时置于-20℃保存;

②试剂二和试剂四配制后有效期较短,为便于试验安排均附赠一瓶作为备用;

③准确在10 s和310 s处完成吸光值测定,以保证实验结果的准确性和重复性;同时测定多个样本时,应使用多道移液器且分批进行测定,以确保组间反应时间一致;

④若A2测定或∆A大于1.0,建议将粗酶液使用提取液适当稀释后再进行测定;若∆A小于0.02,建议制备更高浓度样本、增加上样量(粗酶液增加至20 μL,其它试剂量不变)或适当延长酶促反应时间(37℃反应时间延长至10-30 min)后再进行测定,计算时相应修改;

注: 为保证结果准确且避免试剂损失,测定前请仔细阅读说明书(以实际收到说明书为准),确认试剂储存和准备是否充分,操作步骤是否清楚,且务必取2-3个预期差异交的样本进行预测定,过程中问题请您及时与工作人员联系。
Product Citation

[1] Fan X, Gu C, Cai J, et al. Mechanistic insights into primary biotransformation of diethyl phthalate in earthworm and significant SOD inhibitory effect of esterolytic products[J]. Chemosphere, 2022, 288: 132491.(IF 7.086)

[2] Fan X, Gu C, Jin Z, et al. Major biotransformation of phthalic acid esters in Eisenia fetida: Mechanistic insights and association with catalytic enzymes and intestinal symbionts[J]. Environment International, 2023, 171: 107712.(IF 13.352)

[3] Li J, Jia Y, Zhang D, et al. Molecular identification of carboxylesterase genes and their potential roles in the insecticides susceptibility of Grapholita molesta[J]. Insect Molecular Biology, 2023, 32(3): 305-315.(IF 2.6)

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