K-DMAL
100 assays (manual) / 1000 assays (microplate) / 1100 assays (auto-analyser)
| Content: | 100 assays (manual) / 1000 assays (microplate) / 1100 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-Malic Acid |
| Assay Format: | Spectrophotometer, Microplate, Auto-analyser |
| Detection Method: | Absorbance |
| Wavelength (nm): | 340 |
| Signal Response: | Increase |
| Linear Range: | 0.5 to 40 µg of D-malic acid per assay |
| Limit of Detection: | 0.26 mg/L |
| Reaction Time (min): | ~ 6 min |
| Application examples: | Wine, beer, fruit juices, soft drinks, dietetic foods, candies, fruit and vegetables, cosmetics, pharmaceuticals and other materials (e.g. biological cultures, samples, etc.). |
| Method recognition: | Methods based on this principle have been accepted by EEC, EN, DIN, OIV, IFU, and AIJN |
This product has been discontinued (read more).
The D-Malic Acid assay kit is suitable for the specific measurement and analysis of D-malic acid (D-malate) in beverages and 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).
Interested in more assay kits? See our complete list of organic acid assay kits.
Advantages
The D-Malic Acid assay kit is suitable for the specific measurement and analysis of D-malic acid (D-malate) in beverages and food products.
This kit is highly efficient in the enzymatic digestion of simple and complex protein samples using trypsin and the subsequent purification of the resulting peptides using a convenient spin column format. Trypsin is added to the protein sample and bound to the column. Salts are washed away and the trypsin is then activated to digest proteins. Peptides are then eluted in a small volume and ready for downstream analysis. The peptides generated are complete, with no additional artifacts being detected in mass spectrometry. Fifteen micrograms of protein can be processed, digested and purified with each spin column with about 20 minutes of hands-on time (plus trypsin incubation). The simultaneous protein digestion and volumetric concentration of the purified peptides makes the kit a convenient method for preparing peptides to be analyzed by many downstream applications such as mass spectrometry and more.
Figure 1 / 1
Click for expanded view
| Kit Specifications | |
| Maximum Protein Input | 15 μg |
| Minimum Protein Input | 2 μg |
| Minimum Elution Volume | 30 μL |
| Time to Process 10 Purifications | 20 minutes (Plus a 1-hour incubation) |
Storage Conditions
All solutions should be kept tightly sealed and stored at room temperature. Once opened, the solution should be stored at 4°C. This kit is stable for 2 years after the date of shipment.
| Component | Cat. 17500 (25 preps) |
|---|---|
| Wash Solution C | 30 mL |
| Binding Buffer A | 4 mL |
| Column Activation Buffer | 3 mL |
| Micro Spin Columns | 25 |
| Collection Tubes | 25 |
| Elution tubes (1.7 mL) | 25 |
| Product Insert | 1 |
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.