DBCO-PEG2-Maleimide is a PEG linker containing a DBCO moiety and a terminal primary maleimide group. The maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a thiol. DBCO is commonly used for copper-free Click Chemistry reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
DBCO-PEG2-Maleimide is a PEG linker containing a DBCO moiety and a terminal primary maleimide group. The maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a thiol. DBCO is commonly used for copper-free Click Chemistry reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
K-ACETGK
SKU: 700004257
110 mL of prepared reagent (e.g. 500 assays of 0.22 mL)
| Content: | 110 mL of prepared reagent (e.g. 500 assays of 0.22 mL) |
| 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: | Acetic Acid |
| Assay Format: | Auto-analyser |
| Detection Method: | Absorbance |
| Wavelength (nm): | 340 |
| Signal Response: | Increase |
| Linear Range: | up to 1.8 g/L of acetic acid per assay |
| Limit of Detection: | ~ 10 mg/L |
| Reaction Time (min): | 8 min at 25oC or 5 min at 37oC |
| Application examples: | Wine, beer, fruit and fruit juices, soft drinks, vinegar, vegetables, pickles, dairy products (e.g. cheese), meat, fish, bread, bakery products (and baking agents), ketchup, soy sauce, mayonnaise, dressings, paper (and cardboard), tea, pharmaceuticals (e.g. infusion solutions), feed and other materials (e.g. biological cultures, samples, etc.). |
| Method recognition: | Improved method |
The Acetic Acid GK format test kit is for use with auto-analysers and is suitable for the specific measurement and analysis of acetic acid (acetate) especially in wines, fruit juices, beverages and food products.
As part of Megazyme’s overall commitment to providing the highest quality products, we have developed this acetic acid kit that provides a specific and rapid assay for use with auto-analysers. The kit assay is based on the conversion of NAD+ to NADH and therefore provides a positive reaction (increase in absorbance) which offers a more robust assay.
The reagents, as supplied, are stable for a minimum of 2 years and the prepared reagents are stable for a minimum of 1 week (on-board stability). In addition, the prepared reagents can be stored frozen for longer term stability (see K-ACETGK Booklet for more details).
View more of our acetic acid and organic acid assay kits.
Advantages
The Acetic Acid GK format test kit is for use with auto-analysers and is suitable for the specific measurement and analysis of acetic acid (acetate) especially in wines, fruit juices, beverages and food products.
K-MRGLUC
1000 assays (microplate) / 100 assays (manual) / 400 assays (auto-analyser)
| Content: | 1000 assays (microplate) / 100 assays (manual) / 400 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-Glucose |
| Assay Format: | Spectrophotometer, Microplate, Auto-analyser |
| Detection Method: | Absorbance, Fluorescence |
| Wavelength (nm): | (Fluorescence) 530-560 (ex), ~ 590 (em) (Absorbance) 570 |
| Signal Response: | Increase |
| Linear Range: | (Fluorescence) 0.009-0.18 μg of D-glucose per assay (0.5-10 μM in-assay) (Absorbance) 0.9-9.0 μg of D-glucose per assay (5-50 μM in-assay) |
| Limit of Detection: | (Fluorescence) 0.09 ug/mL (Absorbance) 0.25 ug/mL |
| Reproducibility (%): | (Fluorescence) ~ 6% (Absorbance) ~ 7% |
| Reaction Time (min): | (Fluorescence) 30 min (Absorbance) 30 min |
| Application examples: | Food and beverage samples such as wine, beer, fruit juices, soft drinks, milk, jam, dietetic foods, bakery products, candies, fruit and vegetables. Other samples such as tobacco, cosmetics, pharmaceuticals (e.g. infusions), feed, paper (and cardboard) and other materials (e.g. biological cultures, samples, etc.). |
This product has been discontinued.
The D-Glucose Assay Kit (Megaplex Red) provides a simple robust method for the measurement of D-glucose. This kit utilises a highly sensitive Megaplex Red probe which when coupled to horseradish peroxidase (HRP) and glucose oxidase (GOX) enzymatic reactions, allows for the measurement of D-glucose in a sample. Upon oxidation of the probe by HRP, a coloured product (resorufin) is formed that can be measured in fluorescence mode using excitation between 530-560 nm and emission at ~ 590 nm* or colourimetrically at 570 nm.
*The excitation and emission maxima of Megaplex Red are 570 nm and 585 nm respectively.
See more related mono/disaccharide assay kit products.
Fluorometric/UV method for the determination of D-glucose content in a variety of samples.
Advantages
The D-Glucose Assay Kit (Megaplex Red) provides a simple robust method for the measurement of D-glucose. This kit utilises a highly sensitive Megaplex Red probe which when coupled to horseradish peroxidase (HRP) and glucose oxidase (GOX) enzymatic reactions, allows for the measurement of D-glucose in a sample. Upon oxidation of the probe by HRP, a coloured product (resorufin) is formed that can be measured in fluorescence mode using excitation between 530-560 nm and emission at ~ 590 nm* or colourimetrically at 570 nm.