Nitrate Reductase (NR) Activity Assay Kit
硝酸还原酶活性检测试剂盒
货号:AKNM001M
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
Nitrate Reductase (NR) 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UV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
硝酸还原酶可催化硝酸盐还原为亚硝酸盐,NO3-+NADH+H+→ NO2-+NAD++H2O,NADH在340 nm处具有特征吸收峰,通过吸光值变化即可表征硝酸还原酶的活性。
  • 检测方法: NADPH速率法
  • 检测波长: 340 nm
  • 信号响应: 递减型
Notices

①硝酸还原酶易失活,粗酶液制备过程需在冰上迅速完成;

②空白组为各试剂组分质量的检测孔,正常情况下变化不超过0.05;

③准确在规定时间点完成吸光值的测定,以确保实验结果的准确性和重复性;

④试剂三有效期较短,为便于试验安排附赠1瓶作为备用,每瓶均可满足100个样本的测定;

⑤若A测定大于1.2或者∆A大于0.5时,建议将粗酶液适当稀释后再进行测定;若∆A测定小于0.01,可适当延长酶促反应时间后再进行测定,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] Zhou L, Zhao B, Zhuang W Q. Double-edged sword effects of dissimilatory nitrate reduction to ammonium (DNRA) bacteria on anammox bacteria performance in an MBR reactor[J]. Water Research, 2023, 233: 119754.(IF 12.8)

[2] Zhou P, Jiang Y, Adeel M, et al. Nickel Oxide Nanoparticles Improve Soybean Yield and Enhance Nitrogen Assimilation[J]. Environmental Science & Technology, 2023, 57(19): 7547-7558.(IF 11.4)

[3] An J, Sun L, Liu M, et al. Influences of Growth Stage and Ensiling Time on Fermentation Characteristics, Nitrite, and Bacterial Communities during Ensiling of Alfalfa[J]. Plants, 2023, 13(1): 84.(IF 4.5)

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