Usages: For determination of total bacterial count .
Principle: Tryptone provide carbon and nitrogen; yeast extract powder provides B vitamins; glucose to provide energy, agar is the solidifying agent. Formulation(per liter): Tryptone 5.0g Yeast extract powder 2.5g Glucose 1.0g Agar 15.0g Final pH 7.0 ± 0.2
How to use: 1.Suspend 23.5g 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
IVD3020 MagPure Universal RNA Kit
Product Info
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Product Info
Introduction
This product is suitable for rapid RNA extraction from tissue , cells, and other clinical samples. RNA can be used directly for RT-PCR, quantitative RT-PCR and so on.
Details
Specifications
Features
Specifications
Main Functions
Isolation total RNA from tissue, cell
Applications
RT-PCR, cDNA synthesis, second generation sequencing
Purification method
Polydisperse magnetic beads
Purification technology
Magnetic beads technology
Process method
Manual or automatic
Adaptive instrument
Nucleic acid extractor, pipetting workstation
Sample type
Tissues, cells, lymphocytes and other clinical sample
Sample amount
Cells grown in suspension:3~5 x 106Animal tissue: 10~20mgPlant tissue: ≤100mg
Principle
The Kit combines the speed and efficiency of silica-based technology with the convenient handling of magnetic particles for purification of total RNA. Samples are lysed and RNA is purified from lysates in one step through its binding to the silica surface of the particles in the presence of a chaotropic salt. The particles are separated from the lysates using a magnet and DNA is removed by treatment with RNase-free DNase I. The magnetic particles are efficiently washed, and RNA is eluted in RNase-free water
Advantages
High purity – OD260 / 280 :1.9-2.0, OD 260 / 230 :1.5-2.0
Economy – less than 50% of the price of Qiagen and other imported products
Automatic – extraction without manual participation, saving time and effort
MagPure RNA Particles should be stored at 2–8°C upon arrival. DNase I should be stored at -20°C. However, short-term storage (DNase I up to 1 weeks, MagPure RNA Particles up to 8 weeks) at roomtemperature (15–25°C) does not affect their performance. The remaining kit components can be stored at room temperature (15–25°C) and are stable for at least 18 months under these conditions.
Document
This product is suitable for rapid RNA extraction from tissue , cells, and other clinical samples. RNA can be used directly for RT-PCR, quantitative RT-PCR and so on.
Short term stability: 2-8oC, Long term stability: See individual component labels
Stability:
> 2 years under recommended storage conditions
Analyte:
Formaldehyde
Assay Format:
Spectrophotometer, Microplate, Auto-analyser
Detection Method:
Absorbance
Wavelength (nm):
340
Signal Response:
Increase
Linear Range:
0.1 to 14 μg of formaldehyde per assay
Limit of Detection:
0.033 mg of formaldehyde per test or 0.016 mg/mL of formaldehyde in a sample treated as per the standard procedure
Limit of Quantification:
0.11 mg of formaldehyde per test or 0.054 mg/mL of formaldehyde in a sample treated as per the standard procedure
Reproducibility (%):
~ 3%
Reaction Time (min):
~ 15 min
Application examples:
Environmental samples, food and beverage samples.
The Formaldehyde Assay Kit provides a simple robust method for the measurement of formaldehyde.
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).
Isolate all sizes of circulating and exosomal RNA, including microRNA
Versatile plasma/serum input ranges
No phenol extractions
No carrier RNA
Bind and elute all RNA irrespective of size or GC content, without bias
Concentrate circulating RNA and exosomal RNA into a flexible elution volume
High quality, purified RNA is suitable for a variety of downstream applications, including Small RNA Sequencing. Find out more information on Norgen’s NGS services
Compatible with Streck Cell-Free RNA BCT® Tubes
Purification is based on spin column chromatography that uses Norgen’s proprietary resin separation matrix
These kits provide a fast, reliable and convenient method to purify and concentrate high quality, high purity and inhibitor-free cell-free circulating and exosomal RNA using a convenient spin column method. These kits can purify RNA from fresh or frozen serum or plasma samples prepared from blood collected on either EDTA or Citrate. Plasma samples prepared from blood collected on heparin should not be used, as heparin can significantly interfere with many downstream applications such as RT-PCR. The purified plasma/serum RNA is fully compatible with all downstream applications including PCR, qPCR, methylation-sensitive reverse transcription qPCR, reverse transcription PCR, Northern blotting, RNase protection and primer extension, expression array assays, and NGS.
Background
Plasma/Serum cell-free circulating RNA or exosomal RNA has the potential to provide biomarkers for certain cancers and disease states. Exosomes are 40 – 150 nm membrane vesicles, which are secreted by most cell types. Exosomes can be found in saliva, blood, urine, amniotic fluid and malignant ascitic fluids, among other biological fluids. Evidence has been accumulating recently that these vesicles act as cellular messengers, conveying information to distant cells and tissues within the body. These exosomes may play a functional role in mediating adaptive immune responses to infectious agents and tumours, tissue repair, neural communication and transfer of pathogenic proteins. For this reason exosomal RNAs may serve as biomarkers for various diseases including cancer. As the RNA molecules encapsulated within exosomes are protected from degradation by RNAses they can be efficiently recovered from biological fluids, such as plasma or serum.
Plasma/Serum RNA Purification Mini Kit
This kit can purify RNA from fresh or frozen serum or plasma samples prepared from blood collected on either EDTA or Citrate, from volumes ranging from 50 µL to 200 µL. The purified plasma/serum RNA is eluted in a flexible final volume of 10 µL to 25 µL.
Plasma/Serum RNA Purification Midi Kit
This utilizes a two column method, and can purify RNA from fresh or frozen serum or plasma samples prepared from blood collected on either EDTA or Citrate, from volumes ranging from 250 µL to 1.5 mL. The first column will handle the large volume input of bodily fluids that is followed by a concentration on a mini column for a final elution of 50 µL to 100 µL.
Plasma/Serum RNA Purification Maxi Kit
This kit can purify RNA from fresh or frozen serum or plasma samples prepared from blood collected on either EDTA or Citrate, from volumes ranging from 2 mL to 5 mL. The first column will handle the large volume input of bodily fluids that is followed by a concentration on a mini column for a final elution of 50 µL to 100 µL.
All sizes, including miRNA and small RNA (<200 nt)
Elution Volume
50-100 μL
Time to Complete 10 Purifications
35-40 minutes
Average Yields*
Variable depending on specimen
*Please check page 7 of the Product Insert for Average Plasma/Serum Yields and Common RNA Quantification Methods.
This kit is suitable for the isolation of RNA from fresh or frozen serum or plasma prepared from blood collected on either EDTA or Citrate. Plasma samples prepared from blood collected on heparin should not be used as heparin can significantly interfere with many downstream applications such as RT-PCR.
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. It is recommended to warm Lysis Buffer A for 20 minutes at 60°C if any salt precipitation is observed.