Introduction

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 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.

Formulation

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

Preparation

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.

Quality Control

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

Storage and Shelf Life

2-30℃，Keep container tightly closed, avoid direct sunlight.

Use before expiry date on the label.

 Precautions

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.

Waste Disposal

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……

Introduction

The kit offers the unique feature to isolate total RNA including small RNA and DNA from serum and plasma without the need to resort to the cumbersome phenol/chloroform extraction or a time consuming proteinase digest. RNA purified using the kit is ready for applications such as RT-PCR, Northern blotting, poly A+ RNA (mRNA) purification, nuclease protection, and in vitro translation.

Details

Specifications

Features	Specifications
Main Functions	Isolation total RNA and miRNA from 0.2-0.6ml serum and plasma
Applications
Purification method	Mini spin column
Purification technology	Silica technology
Process method	Manual (centrifugation or vacuum)
Sample type
Sample amount
Yield
Elution volume
Time per run
Liquid carrying volume per column
Binding yield of column

Principle

HiPure RNA technology simplifies total RNA isolation. The sample material is denatured in Lysis Buffer. The protein is then precipitated by Protein Precipitation Solution and pelleted by centrifugation. After the removal of protein the binding conditions for nucleic acids are adjusted by adding isopropanol. Total nucleic acids are bound to the column. Optionally, DNA can be removed by an on-column DNase digest. The remaining nucleic acids are washed and eluted with minimal amounts of RNase-Free water.

Kit Contents

Contents	R431402	R431403
Purification Times	50 Preps	250 Preps
HiPure RNA Mini Columns	100	2 x 250
2ml Collection Tubes	100	2 x 250
Buffer CFL	6 ml	30 ml
Buffer CFP	1.8 ml	10 ml
Buffer RWC	20 ml	80 ml
Buffer RW2*	20 ml	2 x 50 ml
RNase Free Water	10 ml	60 ml

Storage and Stability

The kit components can be stored at room temperature (15-25°C) and are stable for at least 18 months under these conditions.

The kit offers the unique feature to isolate total RNA including small RNA and DNA from serum and plasma without the need to resort to the cumbersome phenol/chloroform extraction or a time consuming proteinase digest. RNA purified using the kit is ready for applications such as RT-PCR, Northern blotting, poly A+ RNA (mRNA) purification, nuclease protection, and in vitro translation.

Introduction

Magnetic bead nucleic acid purification technology uses nano or micron superparamagnetic material as the matrix, generally black ferric oxide or yellowish brown ferricoxide as the magnetic material. The surface of bead is coated with appropriate functional groups, which can adsorb nucleic acid. Magnetic beads commonly used for nucleic acids, containing carboxyl groups, hydroxyl groups, or silicon groups. Silicon-based magnetic beads are the most common, and its principle of adsorbing nucleic acid is consistent with the classical glass milk purification technology or glass fiber filter membrane purification method. Magpure particle is a kind of polydisperse fast speed silica magnetic beads. The core is ferricoxide, accounting for 50%, and the surface coating is silica, accounting for 50%. The product can be used for plasmid extraction, gel DNA recovery, product purification, genomic DNA and RNA extraction, and viral nucleic acid extraction.

Details

Specifications

Features	Specifications
Concentration	70 mg/ml
Appearance	Suspension of yellowish brown particles
Surface functional group	Si-OH, Silanol
Dispersibility	Polydisperse Amorphous
Particle size	0.2-2 μm
Preservation conditions	Room Temperature, valid for up to 2 years.It is recommended to store in 2-8°C to prevent microbial growth.
Magnetic response speed	~60 seconds
Settling velocity	>10 minutes
High salt mediated binding	>2M guanidine isothiocyanate, DNA recovery up to 80%
Alcohol mediated binding	2M guanidine hydrochloride / isopropanol (30%), and the recovery of DNA / RNA was as high as 85%
PEG8000 mediated binding	The recovery of DNA/RNA was up to 85%
DNase/RNase	Not detected
DNA residue	<1 ppm
Recommended application	Plasmid extraction, gel DNA recovery, viral nucleic acid isolation

Principle

Highsalt mediated binding: in the solution containing 2-4M guanidine isothiocyanate, Magpure particles can selectively recover DNA molecules, and impurities such as protein polysaccharides are not adsorbed.

Alcohol mediated binding: in the solution containing guanidine salt and alcohol (>25%), Magpure particles can selectively recover DNA/RNA molecules, and proteins and other impurities are not adsorbed.

After biological samples are treated with digestive solution or lysis Buffer, DNA/RNA is released from cells, organelles and protein complexes (ribosomes and nucleosomes) into reagents. After Magpure particles and binding solution are added, DNA/RNA is adsorbed to the surface of Magpure particles to form DNA/RNA bead complex. Under the action of the magnetic field, the magnetic beads are separated and collected, and the impurities such as protein are removed with the waste liquid. After two or three steps of further cleaning, the DNA/RNA magnetic bead complex is resuspended in sterilized water or TE buffer, and the DNA/RNA falls off from the surface of the magnetic beads, so as to achieve the purpose of purification.

Ordering information

CAT.No.	Product Name	Package
C14110	MagPure Particles N	100 ml
C14111	MagPure Particles N	400 ml
C14112	MagPure Particles N	3 x 400 ml
C14113	MagPure Particles N	10 x 400 ml

Purchase Guide

Features	MagPure Particles	MagPure Particles N	MagPure Particles G	MagPure Particles F	MagBind Particles
Cat.No.	C1410	C1411	C1412	C1414	C1413
Concentration	100mg/ml	70mg/ml	40mg/ml	50mg/ml	10mg/ml
Form	Amorphous and Porous	Amorphous and Porous	Porous	Amorphous	Nonporous
Surface function	Si-OH, Silica Beads	Si-OH, Silica Beads	Si-OH, Silica Beads	Si-OH, Silica Beads	COOH, Carboxyl Beads
Dispersion	Polydisperse	Polydisperse	Monodisperse	Monodisperse	Monodisperse
Particle Size	1.5-5μm	0.2-2μm	1-1.5μm	0.2-1.5μm	0.8-1μm
Color	Black	Yellowish Brown	Dark Brown	Dark Brown	Yellowish Brown
Magnetic response	15-30s	~60s	~30s	20s	120s
Settling Time (1ml)	>5min	>10min	>3min	>3min	>2h
Usage (0.2ml Sample)	20μl	20μl	20-30μl	20-30μl	20-30μl
DNA Recover Rate (only 4M GITC)	>80%	>80%	>80%	>80%	0
DNA Recover Rate (10% PEG8000/NaCl)	>85%	>85%	>85%	>85%	>90%
Recommended Use	gDNA/RNA Isolation from Blood, Tissue, Plant, Swab, Spots, Stool, Soil and etc.Viral DNA/RNA IsolationAgarose Gel DNA Purification	DNA/RNA Isolation from low nucleic acid content samplesPlasmid IsolationDNA/RNA Clean Up	Circulating DNA IsolationViral Nucleic acid IsolationgDNA Isolation FFPE DNA/RNA Isolation	Plasmid extractiongel DNA recoverygenomicDNA/RNA extraction viral nucleic acid extractionCirculating DNA extraction	DNA/RNA Clean Up and concentrationDNA/RNA Isolation from low nucleic acid content samplesResearch immuno assays

• The MagPure magnetic-particle technology combines the speed and efficiency of silica-based DNA purification with the convenient handling of magnetic particles. DNA binds to the silica surface of the magnetic particles in the presence of a chaotropic salt. DNA bound to the particles is then efficiently washed, considerably improving the purity of DNA. High-quality DNA is eluted. The automated purification procedure completely removes enzymes, nucleotides, and other contaminants and inhibitors. Purified DNA is suitable for direct use in downstream applications, such as sequencing and microarray analysis.

Magnetic bead nucleic acid purification technology uses nano or micron superparamagnetic material as the matrix, generally black ferric oxide or yellowish brown ferricoxide as the magnetic material. The surface of bead is coated with appropriate functional groups, which can adsorb nucleic acid. Magnetic beads commonly used for nucleic acids, containing carboxyl groups, hydroxyl groups, or silicon groups. Silicon-based magnetic beads are the most common, and its principle of adsorbing nucleic acid is consistent with the classical glass milk purification technology or glass fiber filter membrane purification method. Magpure particle is a kind of polydisperse fast speed silica magnetic beads. The core is ferricoxide, accounting for 50%, and the surface coating is silica, accounting for 50%. The product can be used for plasmid extraction, gel DNA recovery, product purification, genomic DNA and RNA extraction, and viral nucleic acid extraction.