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China, Chinese Best-Selling Custom Enzyme Substrate Detection Reagent Total Coliform Test Kit Water Test for E Coli and Coliform1 Industrial Products Supplier Manufacturer Details, price list catalog:
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Lab Utensil and DisposableOther Lab Utensils and DisposablesEnzyme Substrate Detection ReagentTotal Coliform Test Kit
Shanghai Haiker Environmental Protection Equipment Co., Ltd
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Product Description Product DescriptionEnzyme Substrate Detection Reagent Character This product is white or light yellow granulesClarification degree Colorless or slightly yellowpH 7.07.6weight 2.7±0.5gStorage Long term storage, refrigerating, drying, sealing and avoiding light storage at 4 ~ 8Term of validity 1 yearsEnzyme Substrate Detection Reagent Working principleIn the water samples containing total coliform bacteria, the target bacteria were cultured in the Minimal Medium 0NPG-MUG medium at 36±1 C. The specific enzyme beta galactosidase produced by the total coliform bacteria can decompose the color source substrate of the Minimal Medium 0NPG-MUG medium, which makes the culture medium yellow; meanwhile, the large intestine in the water sample is in large intestine. Escherichia coli produces a specific beta glucuronase to decompose the fluorescent substrate MUG in Minimal Medium 0NPG-MUG medium and produce characteristic fluorescence. The same principle, the heat coliform group (fecal coliform group) will decompose the color source substrate ONPG in the Minimal Medium 0NPG-MUG medium at 44.5±0.5 C, making the medium yellow.Packaging specification 200/boxUsage methodQualitative detectionSetp 1 Add reagent in 100ml water sample, dissolve it. and Culture 24h at 36±1Step 2 Read resultColorless = negativeYellow = total coliform positiveYellow = total coliform positiveYellow + fluorescence = Escherichia coli positiveQuantitative detectionNote: the heat tolerant coliform group (fecal coliform) needsto be cultured at 44.5± 0.5 24h, and yellow is positive.Quantitative detectionStep 1 Add reagent in 100ml water sample, dissolve it.Step 2 Pour into the 51 or 97 detection plate.Step 3 Use LK sealer to seal the detection plate, and cultivate 24h at 36Step 4 Results qualitative test was used to check the MPN table count.Note: the heat tolerance coliform group (fecal coliform group) needs to be cultured at 44.5±0.5 24h, and the Yellow pore pattern is positive, and the corresponding MPN table count is found ABOUT US FAQQ1What is your minimum order quantity?A1The minimum order quantity is very low, and the minimum order is one set. For customized projects, it depends on different requirements.Q2Do you offer guarantee for the products?A2Yes, we offer 1-2 years warranty to our products.Q3What is the delivrey time after an drder placed?A3Our standard delivery is 3-5days when we have stock.We will let you know the lead time according to your oder quantity in time.Q4What is the warranty?A4The free warranty is one year from the day of Commissioning qualified.Q5Can you tell me your main customers?A5Sorry we could not tell you except customer's permission. At the same time,your information also will be protected.Q6How can i get the after-service?A6We will be responsible for our products in the valid time.
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