Usages:
For the rapid detection and of coliforms and E. coli.
Principle:
Peptone and yeast extract powder provides carbon and nitrogen sources and trace elements; sodium chloride maintains osmotic equilibrium; agar as medium coagulant; dodecyl sulfate inhibit Gram-positive bacteria; chromogenic substrate were mixed occurrence of coliforms and E. coli enzyme corresponding specific reactions, hydrolysis of the substrate, the release of the color groups, in a pale yellow plates coliforms appears orange-red colonies while E.coli appears blue-green colonies.
Formulation (per liter):
Peptone 15.0g
Yeast extract powder 3.0g
Sodium chloride: 5.0g
Sodium lauryl sulfate: 0.1g
Agar: 12.0g
Mixed chromogenic substrate: 6.77g
Final pH 7.0 ± 0.2
How to use:
1. Weigh 41.9g of the product, adding , 1.0 L of distilled or deionized water, heated to boiling stir until completely dissolved, dispensing into flask, 115 autoclaved 10minutes.
2, Take 25.0g or 25.0mL of sample with sterile procedures, added to the flask containing 225.0mL of sterile phosphate buffered saline (or saline) ,shaken thoroughly homogenized with a homogenizer or a 1:10 dilution of 1min solution, diluted 1:10 and then continue to select the appropriate serial dilutions of three, the two plates inoculated with each dilution, poured dissolved by heating and cooled to about 45 medium.
3, observe the results.
Quality control:
This product appears light yellow after pouring on plate, these strains were inoculated after 36 ± 1 18 ~ 24h culture growth in the following table.
Bacteria name bacteria NO. growth situation feature
Escherichia coli ATCC25922 good blue-green colonies
Citrobacter ATCC8090 good orange-red colonies
Salmonella typhimurium CMCC50115 good colorless colonies
Enterococcus faecalis ATCC29212 suppressed —–
Storage: Store in a dark, cool and dry place, tighten the caps immediately after use. Storage period of two years.
1000mL
Highly Sensitive, rapid, robust screening kit for sample phosphatase activity.
For plate-based colorimetric enzymatic determination of alkaline phosphatase:
Distributed in almost every tissue of the body, serum alkaline phosphatase (ALP) levels are of interest in the testing for hepatobiliary disorder and bone disease. Most of the ALP in the normal adult serum is from the liver or biliary tract. Normal alkaline phosphatase levels are age-dependent and are elevated during periods of active bone growth. Moderate elevations of ALP (not involving the liver or bone) may be attributed to Hodgkin’s disease, congestive heart failure, and abdominal bacterial infections.
Alkaline phosphatase (ALP) catalyzes the hydrolysis of phosphate esters in an alkaline environment, resulting in the formation of an organic radical and inorganic phosphate. In mammals, this enzyme is found mainly in the liver and bones. Marked increase in serum ALP levels, a disease known as hyperalkalinephosphatasemia, has been associated with malignant biliary obstruction, primary biliary cirrhosis, primary sclerosing cholangitis, hepatic lymphoma, and sarcoidosis.
The kit contains sufficient materials to rapidly test 42 samples in duplicate.
Highly Sensitive, rapid, robust screening kit for sample phosphatase activity.
This kit is designed for the rapid preparation and purification of DNA fragments that have been fractionated on agarose gels. The recovered DNA is free from agarose and other impurities, and is compatible with restriction enzyme digestion, ligation into vectors and sequencing. The protocol can be completed in 20 minutes.
Figure 1 / 2
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| Kit Specifications | |
| Column Binding Capacity | 10 μg |
| Maximum Weight of Gel Slice | 400 mg |
| Average Recovery | 70-90% |
| Size of DNA Purified | 100 – 15,000 bp |
| Minimum Elution Volume | 30 μL |
| Time to Complete 10 Purifications | 30 minutes |
Storage Conditions and Product Stability
All solutions should be kept tightly sealed and stored at room temperature. This kit is stable for 1 year after the date of shipment.
| Component | Cat. 13100 (50 preps) |
|---|---|
| Binding Buffer G | 80 mL |
| Wash Solution A | 12 mL |
| Elution Buffer B | 8 mL |
| Spin Columns | 50 |
| Collection Tubes | 50 |
| Elution Tubes (1.7 mL) | 50 |
| Product Insert | 1 |