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蚂蚁淘在线 / 品牌中心 / BioAssay Systems / BioAssay Systems/QuantiQuik™ L-Lactic Acid Quick Test Strips/10 tests/QQLLAC10
商品描述
QuantiQuik™ L-Lactic Acid Quick Test Strips
- Product Overview
- Product FAQ
- Product Citations
- Assay Service
ProtocolSDS
Application
- Direct determination of L-lactic acid concentrations in food and beverage samples as well as biological samples.
Key Features
- Fast and sensitive. Use of 20 or 100 µL sample. Semi-quantitative measurement between 0-360 mg/L (undiluted) L-lactic acid.
- Convenient. No expensive lab equipment needed.
- Sample treatment and assay can be performed in under 15 minutes.
Method
- Visual
Samples
- Wine, beer, milk, etc
Species
- All
Size
- 10 tests
Shelf Life
- 6 months
More Details
- L-LACTIC ACID, or L-lactate, is generated by lactate dehydrogenase (LDH) under hypoxic or anaerobic conditions. L-lactic acid is added to many foods and beverages to give it a tart flavor. Increased levels of L-lactic acid in milk, egg, and fruit juices can be an indication of spoilage. In the wine industry, increasing levels of L-lactic acid and the decreasing levels of L-malic acid are monitored (Malolactic fermentation). In this process, the overall acidity of the wine is reduced and can lead to the improvement of the flavor of the wine. BioAssay Systems QuantiQuik™ L-Lactic Acid Test Strips are based on L-lactate dehydrogenase catalyzed oxidation of L-lactate in which the formed NADH reduces a chromogenic reagent. The intensity of product color is directly proportional to L-lactate concentration in the sample.
What samples have you tested?
The strips have been tested on red wine, white wine, homogenized whole milk, cultured buttermilk, almond milk, yogurt, beer, champagne, apple juice, lemonade, grape juice, orange juice, cranberry juice, lime and lemon juice.My sample turns the strip very dark purple, how can I determine the L-lactate concentration?
Very dark purple indicates that the diluted sample concentration is greater than 360 mg/L. To obtain a more accurate concentration, the sample should be further diluted and retested. For example, if the sample was diluted 5×, try diluting 21×.I don’t have access to a pipetteman. How can I accurately measure out my samples?
We offer exact volume transfer pipettes as an accessory. For samples requiring a 21× dilution, order the 20 µL transfer pipettes (TP20). For samples requiring a 5× dilution, order the 100 µL transfer pipettes (TP100).Can I store unused reagents for future use?
Yes, unused reagents can be stored according to the assay protocol. The strips should be kept in a dry, cool location and protected from light.For more detailed product information and questions, please feel free to Contact Us. Or for more general information regarding our assays, please refer to our General Questions. No citations for this new product. Please check back later.You mayclick here to check if citations are available, but are not listed here yet.
If you or your labs do not have the equipment or scientists necessary to run this assay, BioAssay Systems can perform the service for you.Simply send us your samples:- Fast turnaround - Quality data - Low costPlease email or call 1-510-782-9988 x 2 to request assay service.
