Propargyl-PEG2-NHS ester is a PEG linker with a propargyl group that can participate in copper catalyzed azide-alkyne Click Chemistry and NHS ester that can be used to label amine-containing entitites.
Propargyl-PEG2-NHS ester is a PEG linker with a propargyl group that can participate in copper catalyzed azide-alkyne Click Chemistry and NHS ester that can be used to label amine-containing entitites.
NEST 1.5 mL Microcentrifuge Tube, polypropylene, sterile, DNase, RNase, pyrogen and endotoxin free. Relative centrifugal force (RCF): 30000 x g. Easy-open, secure safelock cap seal. 500 count.
Labware definition is available for immediate use in Opentron’s Labware Library.
NEST 1.5 mL Microcentrifuge Tube, polypropylene, sterile, DNase, RNase, pyrogen and endotoxin free. Relative centrifugal force (RCF): 30000 x g. Easy-open, secure safelock cap seal. 500 count.
Labware definition is available for immediate use in Opentron’s Labware Library.
Usages:
For confirmatory test of colifrom in water.
Principle:
Peptone, yeast extract powder, beef extract powder provides carbon and nitrogen sources, vitamins and minerals; lactose as fermentable sugars; agar as medium coagulant; potassium hydrogen phosphate as buffer.
Formulation(per liter):
Peptone 10g
Yeast extract powder 5g
Beef extract powder 5g
Lactose 10g
Agar 15g
Dipotassium hydrogen phosphate 3.5g
Sodium sulphite 5g
Fuchsin 1g
Final pH 7.2 ± 0.2
How to use:
1.Suspend 54.5g in 1 L of distilled water , stirring heated to boiling until completely dissolved, dispensing flask, autoclave at 115 for 20min. Cool to 50 and pour into petri dishes.
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.
500g