N-(Propargyl-PEG4)-biocytin is a biotin PEG reagent that is reactive with azide containing molecule via click chemistry. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
N-(Propargyl-PEG4)-biocytin is a biotin PEG reagent that is reactive with azide containing molecule via click chemistry. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
N-(Propargyl-PEG4)-biocytin is a biotin PEG reagent that is reactive with azide containing molecule via click chemistry. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
K-DATE
SKU: 700004275
50 assays (manual) / 500 assays (microplate) / 450 assays (auto-analyser)
| Content: | 50 assays (manual) / 500 assays (microplate) / 450 assays (auto-analyser) |
| Shipping Temperature: | Ambient |
| Storage Temperature: | Short term stability: 2-8oC, Long term stability: See individual component labels |
| Stability: | > 2 years under recommended storage conditions |
| Analyte: | D-Lactic Acid |
| Assay Format: | Spectrophotometer, Microplate, Auto-analyser |
| Detection Method: | Absorbance |
| Wavelength (nm): | 340 |
| Signal Response: | Increase |
| Linear Range: | 0.5 to 30 μg of D-lactic acid per assay |
| Limit of Detection: | 0.21 mg/L |
| Reaction Time (min): | ~ 5 min |
| Application examples: | Wine, soft drinks, milk, dairy products (e.g. cream, milk / whey powder, cheese, condensed milk and yogurt), foods containing milk (e.g. dietetic foods, bakery products, baby food, chocolate, sweets and ice-cream), vinegar, fruit and vegetables, processed fruit and vegetables, meat products, food additives, paper (and cardboard), cosmetics, pharmaceuticals and other materials (e.g. biological cultures, samples, etc.). |
| Method recognition: | Methods based on this principle have been accepted by DIN, GOST, IDF, EEC, EN, ISO, OIV, IFU, AIJN and MEBAK |
The D-Lactic Acid (D-Lactate) (Rapid) test kit is suitable for the rapid, specific measurement and analysis of D-lactic acid in wine, beer, juice, milk, cheese, vinegar, meat and other food products.
Note for Content: The number of manual tests per kit can be doubled if all volumes are halved. This can be readily accommodated using the MegaQuantTM Wave Spectrophotometer (D-MQWAVE).
See our full list of lactic acid test kits and other organic acid assay kits.
Advantages
The D-Lactic Acid (D-Lactate) (Rapid) test kit is suitable for the rapid, specific measurement and analysis of D-lactic acid in wine, beer, juice, milk, cheese, vinegar, meat and other food products.
Usages:
For cultivation of Escherichia coli.
Principle:
Peptone provide nitrogen, vitamins and growth factors; sodium chloride to maintain osmotic equilibrium; lactose into fermentable sugars.
Formulation（per liter）:
| Pancreatic Digest of Gelatin | 20 g |
| Lactose Monohydrate | 10g |
| Dehydrated Ox Bile | 5g |
| Bromocresol Purple | 10mg |
| final pH | 7.3±0.2 |
How to use：
1.Suspend 35g 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
Usages:
For cultivation of non-fastidious microorganisms, indole testing.
Principle:
Peptone provide carbon and nitrogen sources, vitamins and growth factors; sodium chloride to maintain osmotic equilibrium.
Formulation(per liter):
Peptone 10g
Sodium chloride 5g
Final pH 7.0 ± 0.2
How to use:
1.Suspend 15g in 1 L of distilled water , stirring heated to boiling until completely dissolved, dispensing flask, 121 autoclave for 15min.
2.Diluted and treated samples.
Quality control:
| Item | The name and number of strain | Growth | Colony Color |
| 1 | Escherichia coli ATCC25922 | Good | Turn Red |
| 2 | Klebsiella pneumoniae | Good | Color unchange |
500g