Propargyl-PEG4-NHS ester

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

Introduction

Usages:
For count, isolation and cultivation of mould and yeast.

Principle:
Peptone provides the carbon and nitrogen; glucose to provide energy; potassium dihydrogen phosphate as a buffer; agar as medium coagulant; chloramphenicol inhibit the growth of bacteria; Bengal as selective antibacterial agents inhibit the growth of bacteria.

Formulation（per liter）:
Peptone 5g
Glucose 10g
Potassium dihydrogen phosphate 1g
Magnesium sulfate 0.5g
Agar 15g
Bengal 0.03g
Chloramphenicol 0.1g
Final pH 7.2 ± 0.2


How to use：
1.Suspend 31.6g 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.

Specifications: 250g/bottle

250g

Payment & Shipping Terms

Minimum Order Quantity

48T

Price

USD$3.8/T

Packaging Details

16T/Bag,48T/Box

Delivery Time

6 working days

Payment Terms

T/T, MoneyGram

Supply Ability

100000T/Month

Product Description

Amplification kits come in a variety of reagent forms such as freeze-dried powder, freeze-dried microspheres, and master mix. (This paragraph can be marked in different forms)

product:

DNA Isothermal Rapid Amplification Kit (Fluorescent type)
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RNA Isothermal Rapid Amplification Kit (Basic Type)-II

…

Nucleic acid detection process: sampling, nucleic acid extraction, nucleic acid amplification, and result analysis. There are corresponding products that can be applied for the experimental steps after the sampling operation, which are more suitable for on-site rapid inspection needs.

Amplification kits come in a variety of reagent forms such as freeze-dried powder, freeze-dried microspheres, and master mix. (This paragraph can be marked in different forms)