Sodium (Na) Colorimetric Assay Kit (E-BC-K207-M)

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Detection Principle	β-galactosidase activated by sodium ions can catalyze glycoside analogues to produce glycoside and o-nitrophenol. The increase of absorbance is determined at 405 nm, and the content of sodium ion is calculated indirectly.
Sample Type	Serum,Plasma,Tissue
Detection Method	Colorimetric method
Detection Instrument	Microplate reader (405 nm)
Research Area	Inorganic Ions , Plant Physiology Series
Storage	This product can be stored at 2-8°C for 12 months with shading light.
Valid Period	12 months
Sensitivity	0.02 mmol/L
Detection Range	0.02-20 mmol/L
Precision	inter-assay CV: 8.4% \| intra-assay CV: 2.2%
Sample Volume	10 μL
Assay Time	30 min

The recommended dilution factor for different samples is as follows (for reference only):

Sample Type	Dilution Factor
Human serum	1
Human plasma	1
Mouse serum	1
Rat plasma	1

The diluent is normal saline (0.9% NaCl) or PBS (0.01 M, pH 7.4). For the dilution of other sample types, please do pretest to confirm the dilution factor.