BL3 base,column support upper and lower light source 3 WLED
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Stand
811 base column support large flat base has no light source
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External light source
LED illumination
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O
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Photography,camera accessories CCD Coupler
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Q
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Display attachment Monitor
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O
O
Other Products
Bis-propargyl-PEG5
Product Info
Document
Product Info
Bis-propargyl-PEG5 is a crosslinker containing propargyl groups at both ends. The propargyl groups reacts with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry to form stable triazole linkages. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Document
Bis-propargyl-PEG5 is a crosslinker containing propargyl groups at both ends. The propargyl groups reacts with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry to form stable triazole linkages. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Usages: For isolation and enumeration of coagulase-positive staphylococci in foodstuffs.
Principle: Tryptone, beef extract powder and yeast extract powder provides carbon and nitrogen sources, vitamins and growth factors; sodium pyruvate and glycine to stimulate the growth of Staphylococcus aureus; lithium chloride and potassium tellurite inhibit the non-staphylococcal microorganisms; containing lecithinase staphylococcal colonies produce degradation yolk make transparent circle, while the role of the lipase produced an opaque precipitate ring; coagulase-positive staphylococci can restore potassium tellurite and produce black colonies; agar is medium coagulant.
Formulation（per liter）: Pancreatic Digest of Casein 10g Beef Extract 5g Yeast Extract 1g Sodium Pyruvate 10g Glycine 12g Lithium Chloride 5g Agar 20g Final pH7.0 ± 0.2
How to use： 1.Suspend 63g in 950ML of distilled water , stirring heated to boiling ,autoclave at 121℃ for 15 minutes. 2.Diluted and treated samples.
Quality control：
Item
The name and number of strain
Growth
Colony Color
1
Staphylococcus aureus ATCC6538
Good
black
2
Staphylococcus epidermidis CMCC (B) 26069
Good
Green-blue
3
Escherichia coli ATCC25922
Not growth
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Storage: Keep container tightly closed, store in a cool, dry place, away from bright light. Storage period of 3 years.
