Introduction

This kit is designed to rich and extract 100bp-500bp circulating DNA from 5 ml cell-free body fluids (such asplasma, serum), and remove fragments above 500bp. Machine reaction only takes 90 minutes. Magnetic-particle technology provides high-quality DNA that is suitable for direct use in downstream applications such as PCR and next generation sequencing.

Details

Specifications

Features	Specifications
Main Functions	Isolation circulating DNA from 5ml plasma, serum, body fluids
Applications	qPCR, NGS, etc.
Purification technology	Magnetic beads technology
Process method	Manual (centrifugation or vacuum)
Sample type	Serum, plasma
Sample amount	5ml
Elution volume	≥40μl
Time per run	≤50 minutes

Principle

This product is based on the purification method of high binding magnetic particles. The sample is lysed and digested under the action of lysate and Protease. DNA is released into the lysate. After adding magnetic particles and binding solution, DNA will be adsorbed on the surface of magnetic particles, and impurities such as proteins will be removed without adsorption. The adsorbed particles were washed with washing solution to remove proteins and impurities, washed with ethanol to remove salts, and finally DNA was eluted by elution buffer.

Advantages

• Economy – less than 50% of the price of Qiagen and other imported products
• Automatic – without labour

Kit Contents

Contents	1292750	12927200
Purification Times	50	200
MagPure Particles G	20 ml	80 ml
MagBind Particles (selection particles)	14 ml	58 ml
Selection Solution	100 ml	400 ml
Proteinase K	300 mg	1.2 g
Protease Dissolve Buffer	25 ml	100 ml
Buffer SDS(20%)	15 ml	60 ml
Buffer MLK	300 ml	3 x 450 ml
Buffer BST1	225 ml	2x 450 ml
Buffer MKW1	225 ml	2x 450 ml
Buffer MW2*	50 ml	2x 100 ml
Buffer AE	10 ml	30 ml

Storage and Stability

MagPure Particles G, MagBind Particles and Proteinase K should bestored at 2–8°C upon arrival. However, short-term storage (up to 12 weeks) at room temperature (15–25°C) does not affect their performance. The remaining kit components can be stored dry at roomtemperature (15–25°C) and are stable for at least 18 months underthese conditions.The entire kit can be stored at 2–8°C, but in this case buffers should be redissolved before use. Make sure that all buffers are at room temperature when used.

This kit is designed to rich and extract 100bp-500bp circulating DNA from 5 ml cell-free body fluids (such asplasma, serum), and remove fragments above 500bp. Machine reaction only takes 90 minutes. Magnetic-particle technology provides high-quality DNA that is suitable for direct use in downstream applications such as PCR and next generation sequencing.

Introduction

Usages:
For selective isolation of Gram-negative bacteria, especially for Shigella and Salmonella.

Principle:
Yeast extract powder provide nitrogen, vitamins, growth factors; sodium chloride to maintain osmotic equilibrium ferric ammonium citrate of iron salts to produce a black iron sulfide; agar as medium coagulant; phenol red as pH indicator.

Formulation（per liter）:
Xylose 3.50g
L-Lysine 5.00g
Lactose 7.50g
Sucrose 7.50 g
Sodium Chloride 5.00 g
Yeast Extract 3.00g
Sodium Desoxycholate 2.50g
Sodium Thiosulphate 6.80g
Fe-Ammonium Citrate 0.80g
Phenol Red 0.08g
Agar 13.50
Final PH 7.4±0.2    

How to use:
1.Suspend 55.2g in 1Lof distilled or deionized water. Heat with frequent agitation and boil to completely dissolve the powder. Do not autoclave ,cool to 50℃ and pour into sterile petri dishes.
2.Dilluted and treated samples.

Quality control:
Quality control strains were inoculated ,and cultured at 36 ± 1 ℃ for 24h ,results show as follows:
strain name              strain code            growth           feature
Arizona bacteria       CMCC (B) 47001          good            black colonies
Salmonella typhimurium CMCC (B) 50115          good            black colonies
Streptococcus faecalis    CMCC32223            prohibited         —        

Storage: Store in a dark, cool and dry place, tighten the cap immediately after use. Storage period of three years.

Specifications: 250g/bottle

250g