For cultivating and enriching nofastidious bacteria ,and for evaluating the efficacy of disinfection.
Formula (per liter)
Peptone—————10.0g Beef Extract———–3.0g Sodium Chloride—–5.0g Final pH———–7.4 ± 0.2
How to use
1.Suspend 18g in 1L of distilled water , stirring heated to boiling to completely dissolve ,autoclave at 121ºC for 15 minutes. 2.Diluted and treated samples.
Storage
Keep container tightly closed, store in a cool, dry place, away from bright light. Storage period of 3 years.
Purification is based on Norgen’s proprietary Silicon Carbide resin matrix
Norgen’s Plasma/Serum Circulating DNA Purification Kits (Slurry Format) provide efficient methods for the purification of fragmented free-circulating DNA from human plasma or serum. The kit is able to isolate all sizes of circulating DNA. The slurry format provides an advantage over other available kits in that it does not require extension tubes for the purification of free-circulating DNA from large sample volumes. DNA can be isolated from either fresh or frozen samples using this kit. The kit will also isolate viral and bacterial DNA from plasma/serum. Typical yields of purified free-circulating DNA will vary depending on the input sample (1-100ng/mL circulating DNA in human plasma), with more concentrated samples tending to yield more free-circulating nucleic acids. The purified, inhibitor-free plasma/serum free-circulating DNA is eluted in an elution solution that is compatible with PCR, qPCR, methylation-sensitive PCR and Southern Blot analysis.
Plasma/Serum Circulating DNA Purification Mini Kit (Slurry Format)
Norgen’s Plasma/Serum Circulating DNA Purification Mini Kit (Slurry Format) provides a fast, reliable and simple procedure for isolating circulating DNA from various amounts of plasma/serum ranging from 50 μL to 400 μL. Preparation time for a single sample is less than 30 minutes.
Plasma/Serum Circulating DNA Purification Midi Kit (Slurry Format)
Norgen’s Plasma/Serum Circulating DNA Purification Midi Kit (Slurry Format) provides a fast, reliable and simple procedure for isolating circulating DNA from various amounts of plasma/serum ranging from 400 μL to 2 mL. Preparation time for a single sample is less than 45 minutes.
Plasma/Serum Circulating DNA Purification Maxi Kit (Slurry Format)
Norgen’s Plasma/Serum Circulating DNA Purification Maxi Kit (Slurry Format) provides a fast, reliable and simple procedure for isolating circulating DNA from various amounts of plasma/serum ranging from 2 mL to 10 mL. Preparation time for a single sample is less than 45 minutes.
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 Benzoic Acid Detection Kit provides a rapid, simple, sensitive, and reliable test suitable for screening of Benzoic Acid concentration.
Benzoic Acid is a white solid that is an extensively used preservative. Although this preservative prevents or delays nutritional losses due to microbiological, enzymatic or chemical changes of foods during its shelf life there is a suspicion that small amounts of benzene may be formed from benzoic acid in nonalcoholic beverages in the presence of ascorbic acid. Benzoic acid and ascorbic acid are food additives which must be declared on the food. Benzoic acid or E 210 is a preservative which also occurs naturally, for instance, in cranberries. A maximum amount of 150 mg/l benzoic acid may be added to non-alcoholic flavored beverages.
Document
Highly Sensitive Assay to Screen for Benzoic Acid
Visual Readout (sample dependent: milk, red/pink)
Detection range of 1ppm to 1500ppm
Tube or Plate based options available
Compatible with the Nix Sensor or plate readers to obtain quantitative results.