Propargyl-PEG8-bromide is a PEG reagent containing an alkyne group and a bromide group. The alkyne group can react with azide-bearing compounds or biomolecules in Click Chemistry reactions under the catalyzation of copper. The PEG spacer increases water-solubility of the molecule in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Propargyl-PEG8-bromide is a PEG reagent containing an alkyne group and a bromide group. The alkyne group can react with azide-bearing compounds or biomolecules in Click Chemistry reactions under the catalyzation of copper. The PEG spacer increases water-solubility of the molecule in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
For the determination of Escherichia coli in drinking water and its source water by multiple tube fermentation method.
MUG permits the rapid detection of Escherichia coli when the medium is observed for fluorescence using a UV light. MUG is hydrolyzed by the enzyme β-glucuronidase which is produced by E. coli to yield a fluorescent end product 4- methylumbelliferone. Trypticase provides the essential nutrients. Lactose is the fermentable carbohydrate. Sodium chloride maintains the osmotic equilibrium. The medium has a strong buffering system to control the pH in the presence of fermentative action. The bile salts inhibit gram-positive bacteria especially the Bacillus species and faecal Streptococci.
| Ingredients | /liter |
| Trypticase or tryptose | 20 g |
| Bile salts No. 3 | 1.5 g |
| Lactose | 5 g |
| K2HPO4 | 4 g |
| KH2PO4 | 1.5 g |
| NaCl | 5 g |
| 4-methylumbelliferyl-β-D-glucuronide (MUG) | 50mg |
| pH6.9±0.2 at 25°C | |
Weigh 37g of dry powder of this product, add 1L of distilled water or deionized water, stir, heat and boil until
completely dissolved, sterilize at 115℃ for 20min, cool to room temperature and set aside.
The following quality control strains were inoculated and cultured at 44.5℃±0.5℃ for 24h. The results are as follows:
| Quality control strains | Growth |
| Escherichia coli ATCC25922 | Blue-white fluorescence is produced under 366nm UV light |
| Salmonella typhimurium ATCC14028 | No fluorescence under 366nm UV light |
| Enterococcus faecalis ATCC29212 | Clear, no fluorescence |
2-30℃，Keep container tightly closed, avoid direct sunlight.
Use before expiry date on the label.
1. When weighing the dehydrated medium, please wear masks to avoid causing respiratory system discomfort
2. Keep container tightly closed after using to prevent clumping.
Microbiological contamination was disposed by autoclaving at 121°C for 30 minutes.
Intended Use For the determination of Escherichia coli in drinking water and its source water by multiple tube fermentation method. Principle and Interpretation MUG permits the rapid detec……
Norgen’s Urine DNA Isolation Kit for Exfoliated Cells or Bacteria is designed for the rapid isolation of either: 1) human genomic DNA from exfoliated cells that have been shed into the urine from the urinary tract; or 2) bacterial genomic DNA from urine samples. The kit allows for the isolation of DNA from 1 to 50 mL of urine. The genomic DNA isolated from exfoliated cells can be used in a number of diagnostic and research applications including the diagnosis and monitoring of bladder, kidney, or other urinary-tract cancers. Bacterial genomic DNA from both human urine samples and urine samples from animals can be isolated with this kit in order to study the levels and types of bacteria that are present. The kit allows for the isolation of genomic DNA from both Gram negative and Gram positive bacteria, including E. coli, Proteus spp., Klebsiella spp., Enterobacter spp., Serratia spp., Pseudomonas spp, Clostridial ssp. and Leptospirosis spp.Chlamydia trachomatis and Neisseria gonorrhoeae.
Typical yields of human genomic DNA from exfoliated cells will vary depending on the cell density of the urine sample, which is affected by a number of factors including health, diet and sex of the individual donating the urine. Typical yields of bacterial genomic DNA will vary depending on the urine sample and the bacterial species, if any, present in the urine. Healthy humans generally have < 10, 000 CFU of bacteria per mL of urine, and this kit is sufficiently sensitive to isolate and detect DNA from even this minimal amount of bacteria. The genomic DNA purified with this kit is fully digestible with all restriction enzymes tested, and is completely compatible with downstream applications such as PCR, qPCR and Southern Blot analysis.
Figure 1 / 3
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| Kit Specifications | |
| Minimum Urine Input | 1 mL |
| Maximum Urine Input | 50 mL |
| Time to Complete 10 Purifications | 10 minutes (Plus a 30 minute incubation – Bacteria) (Plus a 15 minute incubation – Exfoliated) |
Storage Conditions and Product Stability
All solutions should be kept tightly sealed and stored at room temperature. This kit is stable for 2 years after the date of shipment. The kit contains a ready-to-use Proteinase K, which is dissolved in a specially prepared storage buffer. The buffered Proteinase K is stable for up to 2 years after the date of shipment when stored at room temperature.
| Component | Cat. 47050 (50 preps) |
|---|---|
| Resuspension Solution A | 20 mL |
| Lysis Buffer B | 40 mL |
| Wash Solution A | 18 mL |
| Elution Buffer B | 8 mL |
| Proteinase K in Storage Buffer | 1.2 mL |
| Micro Spin Columns | 50 |
| Collection Tubes | 50 |
| Elution Tubes (1.7 mL) | 50 |
| Product Insert | 1 |
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