BioAssay Systems/EnzyChrom™ Ammonia/Ammonium Assay Kit/100 tests/ENH3-100

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¥5580.00
货号:ENH3-100
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EnzyChrom™ Ammonia/Ammonium Assay Kit

EnzyChrom™ Ammonia/Ammonium Assay Kit Catalog No: ENH3-100
Price: $279 Qty:
For orders of 10 or more kits, please call +1-510-782-9988x1 oremail us for best pricing and/or bulk order. Shipping: On Ice Shipment: Fedex ServiceDelivery: 1-2 days (US), 3-6 days (Intl) Storage: -20°C
Ammonia/Ammonium Assay Kit (ENH3-100)
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ProtocolSDS

Application

  • For quantitative determination of ammonia/ammonium concentration.

Key Features

  • High sensitivity and wide linear range. Use 20 μL sample. Linear detection range 24 to 1000 μM ammonia.
  • Homogeneous and simple procedure. Simple "mix-and-measure" procedure allows reliable quantitation of ammonia within 30 minutes.

Method

  • OD340nm, or FL360/450nm

Samples

  • Serum, plasma, urine, saliva, cell culture etc

Species

  • All

Size

  • 100 tests

Detection Limit

  • 24 μM

Shelf Life

  • 6 months

More Details

  • Ammonia (NH3) or its ion form ammonium (NH4+) is an important source of nitrogen for living systems. It is synthesized through amino acid metabolism and is toxic when present at high concentrations. In the liver, ammonia is converted to urea through the urea cycle. Elevated levels of ammonia in the blood (hyperammonemia) have been found in liver dysfunction (cirrhosis), while hypoammonemia has been associated with defects in the urea cycle enzymes (e.g. ornithine transcarbamylase). Simple, direct and automation-ready procedures for measuring NH3 are popular in research and drug discovery. BioAssay Systems ammonia assay is designed to directly measure NH3 and NH4+. In this assay, NADH is converted to NAD+ in the presence of NH3, ketoglutarate and glutamate dehydrogenase. The decrease in optical density at 340 nm or fluorescence intensity at λex/em = 360/450 nm is directly proportionate to the NH3 concentration in the sample.

Does glutamate in the sample interfere with the assay?

High glutamate concentrations (> 2 mM) will interfere with the assay. For example, a typical concentration of glutamate in cell culture medium is ~ 0.15 mM.For more detailed product information and questions, please feel free to Contact Us. Or for more general information regarding our assays, please refer to our General Questions.
Ono, M., & Yoshiga, T. (2019). Cellular immunity in the insect Galleria mellonella against insect non-parasitic nematodes. Parasitology, 146(6), 708-715. Assay: Ammonia/Ammonium in Galleria mellonella greater wax moth. Jiang, S., Yan, W., Wang, S. E., & Baltimore, D. (2018). Let-7 suppresses B cell activation through restricting the availability of necessary nutrients. Cell metabolism, 27(2), 393-403. Assay: Ammonia/Ammonium in mouse B cells. Sartori, R., Leme, J., Caricati, C. P., Tonso, A., & Nunez, E. G. F. (2018). Model Comparison To Describe BHK-21 Cell Growth And Metabolism In Stirred Tank Bioreactors Operated In Batch Mode. Brazilian Journal Of Chemical Engineering, 35(2), 441-458. Assay: Ammonia/Ammonium in monkey bhk! Cell supernatant. Zhu, J., Zhu, X. G., Ying, S. H., & Feng, M. G. (2017). Effect of vacuolar ATPase subunit H (VmaH) on cellular pH, asexual cycle, stress tolerance and virulence in Beauveria bassiana. Fungal genetics and biology, 98, 52-60. Assay: Ammonia/Ammonium in B. bassiana fungus. Wang, L et al (2015). CtBP maintains cancer cell growth and metabolic homeostasis via regulating SIRT4. Cell Death and Disease 6: e1620. Assay: Ammonia/Ammonium in mice tumor tissue. Nunez EG et al (2014). Influence of aeration-homogenization system in stirred tank bioreactors, dissolved oxygen concentration and pH control mode on BHK-21 cell growth and metabolism. Cytotechnology 66(4): 605-617. Assay: Ammonia in hamster cells. Yu Z et al (2014). Advances in detection methods of L-amino acid oxidase activity. Appl Biochem Biotechnol. 174(1):13-27. Assay: Ammonia. Rauner, G et al (2013). Development of Foreign Mammary Epithelial Morphology in the Stroma of Immunodeficient Mice. PloS one 8.6: e68637. Assay: Ammonia in mouse cell culture medium.To find more recent publications, pleaseclick here.
If you or your labs do not have the equipment or scientists necessary to run this assay, BioAssay Systems can perform the service for you.Simply send us your samples:- Fast turnaround - Quality data - Low costPlease email or call 1-510-782-9988 x 2 to request assay service.
BioAssay Systems的EnzyFluo™ERK磷酸化检测试剂盒的有丝分裂原活化蛋白激酶(MAPK / ERK)途径在细胞增殖,分化和迁移中起关键作用。有丝分裂原刺激最终导致ERK1(T202 / Y204)和ERK2(T185 / Y187)磷酸化。MAPK / ERK级联为癌症治疗的发展提出了许多有趣的药物靶标。BioAssay Systems基于细胞的ELISA可测量全细胞中双重磷酸化的ERK1 / 2,并将信号归一化至总蛋白质含量。这种简单有效的测定方法消除了细胞裂解液制备的需要,可用于研究激酶信号传导和激酶抑制剂对细胞的作用。在该测定中,细胞在96孔板中生长,并用配体或药物处理。然后将细胞固定并在孔中透化。使用荧光ELISA进行ERK1 / 2磷酸化(pERK),然后在每个孔中测量总蛋白。