Usages: For the differentiation of Gram-negative bacteria on the basis of citrate utilization.
Principle: Magnesium ions in various metabolic cofactors; ammonium dihydrogen phosphate to provide nitrogen; dipotassium hydrogen phosphate is the buffer; sodium citrate as a carbon source; agar as medium coagulant.
Formulation(per liter): Sodium chloride 5g Magnesium sulfate 0.2g Ammonium dihydrogen phosphate 0.2g Sodium ammonium phosphate 0.8g Sodium citrate 2g Agar 15g Bromothymol blue 0.08g Final pH 7.0 ± 0.2
How to use: 1.Suspend 23.3g in 1 L of distilled water , stirring heated to boiling until completely dissolved, dispensing flask, 121 autoclave for 15min. 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.
Other Products
Swab Collection and DNA Preservation System
Product Info
Document
Product Info
Overview
Collect from nasal, buccal, saliva, fecal, skin, surfaces, and more
Completely stabilize microbiota profiles from the point-of-collection
Minimize bias in data analysis: NGS (Metagenomics/Microbiome), PCR and microarrays
No need to immediately process samples: ship and store at ambient temperatures
DNA preservation at room temperature over 2 years
Renders sample non-infectious for safe and easy shipping
Compatible with DNA isolation kits and protocols: Optimized isolation procedure using Norgen’s Microbiome DNA Isolation Kit
Norgen’s Swab Collection and DNA Preservation System is designed for collection, ambient storage and transport of DNA from samples collected using a swab, including nasal, buccal, saliva, fecal, skin, surfaces, etc. The Swab Collection and DNA Preservation System contains Norgen’s Swab Preservative in a liquid format. The user simply collects the specimen using the provided swab, and then transfers the swab into the Swab Preservative. The Swab Preservative prevents the growth of Gram-negative and Gram-positive bacteria and fungi, and also inactivates viruses allowing the resulting non-infectious samples to be handled and shipped safely. In addition, the Swab Preservative eliminates the need to immediately process or freeze samples and allows the samples to be shipped to centralized testing facilities at ambient temperatures. The components of the Swab Preservative allow DNA samples to be stored at room temperature for over 2 years.
DNA Isolation from Preservative
Swab samples collected and preserved using Norgen’s Swab Collection and DNA Preservation System are compatible with most DNA isolation methods. Samples stored in the tubes have been used successfully with most of Norgen Biotek’s DNA isolation kits and reagents. An optimized isolation procedure is available as part of Norgen’s Microbiome DNA Isolation Kit (Cat. 64100).
When stored at room temperature, unused Norgen Swab Preservative Tubes are stable through to the collect-before date without any reduction in performance. Please see the device insert or tube label for collect-before date.
Norgen’s TaqMan 2x PCR Master Mix is a ready-to-use TaqMan 2x PCR Master Mix solution that contains a PCR internal control which can be detected by HEX/VIC channel in a real-time PCR machine. By detecting the internal control users can validate the DNA template quality, thereby preventing any false negatives in the PCR results. The user needs only to add template, target TaqMan primer/probe mix and water to set up the TaqMan real-time PCR.
PCR Control: TaqMan 2x PCR Master Mix contains PCR control primers/probe (HEX/VIC) and PCR control template. The PCR control reaction in the TaqMan 2x PCR Master Mix is optimized to not interfere with target amplification. The fluorescence of the target probe should not be HEX/VIC.
Details
Reagents Supplied – Cat # 28340
TaqMan 2x PCR Master Mix (3 Vials, 100 Reactions) – Sufficient reagent for 100 x 20 µL reactions
Storage Conditions and Product Stability Norgen’s TaqMan 2x PCR and 2x RT-PCR Master Mixes should be stored at -20ºC. For everyday use an aliquot can be stored at 4ºC for up to three months. The Master Mix is stable for multiple freeze-thaw cycles. When stored at the proper temperature this reagent is stable for at least 1 year.
Short term stability: 2-8oC, Long term stability: See individual component labels
Stability:
> 2 years under recommended storage conditions
Analyte:
Glycerol
Assay Format:
Spectrophotometer, Microplate, Auto-analyser
Detection Method:
Absorbance
Wavelength (nm):
340
Signal Response:
Increase
Linear Range:
1.0 to 35 µg of glycerol per assay
Limit of Detection:
0.37 mg/L
Reaction Time (min):
~ 7 min
Application examples:
Wine (and grape juice), beer, spirits, vinegar, marzipan, fruit juices, soft drinks, toothpaste, honey, tobacco, paper (and cardboard), cosmetics, pharmaceuticals, soap and other materials (e.g. biological cultures, samples, etc.).
Method recognition:
Novel method
The Glycerol GK test kit is a simple, reliable and accurate method for the measurement and analysis of glycerol in beverages, foodstuffs and other material. Based on use of ADP-glucokinase and increase in absorbance on conversion of NAD+ to NADH.
Note for Content: The number of manual tests per kit can be doubled if all volumes are halved. This can be readily accommodated using the MegaQuantTM Wave Spectrophotometer (D-MQWAVE).
Extended cofactors stability. Dissolved cofactors stable for > 1 year at 4oC.
Novel tablet format for increased stability
Very competitive price (cost per test)
All reagents stable for > 2 years as supplied
Very rapid reaction
Positive reaction (assay proceeds with an increase in absorbance)
Mega-Calc™ software tool is available from our website for hassle-free raw data processing
Standard included
Suitable for manual, microplate and auto-analyser formats
Document
The Glycerol GK test kit is a simple, reliable and accurate method for the measurement and analysis of glycerol in beverages, foodstuffs and other material. Based on use of ADP-glucokinase and increase in absorbance on conversion of NAD+ to NADH.
