Vegetable and fruit juices, including orange, pineapple, and grapefruit juices, should be diluted at a ratio of 1:50. This information is provided in the User Guide for product 1.16127 on the product description page.
1.16127
Lactic Acid Test Strips, reflectometric
3.0-60.0 mg/L (lactic acid), REFLECTOQUANT®, for use with RQflex® 20
Synonym(s):
Lactic Acid chemical test strips, Lactic Acid test strip for instrument reader
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| Size/SKU | Availability | Price |
|---|---|---|
50 tests | Please contact Customer Service for Availability | 4 000,00 CZK |
About This Item
UNSPSC Code:
41116116
NACRES:
NA.24
eCl@ss:
40050204
4 000,00 CZK
Please contact Customer Service for Availability
Product Name
Lactic Acid Test, reflectometric, 3.0-60.0 mg/L (lactic acid), for use with REFLECTOQUANT®
description
quantitative
Quality Segment
specific analyte(s)
lactic acid
reaction suitability
reaction type: enzymatic reaction
measuring range
3.0-60.0 mg/L (lactic acid)
application(s)
beverage testing
cannabis testing
food testing
milk and dairy products
compatibility
RQflex® 20, for use with REFLECTOQUANT®
detection method
reflectometric
storage temp.
2-8°C
General description
Method: reflectometric with test strips 3.0 - 60.0 mg/l Reflectoquant®
The Reflectoquant Lactic acid test measures total lactic acid (sum of D- and L-lactic acid in beverages, e.g. wine, beer and fruit/vegetable juice after dilution. Furthermore the test can be used for the determination of lactic acid in food after pretreatment. Lactic acid (lactate) is oxidized by nicotinamide adenine dinucleotide (NAD) under the catalytic effect of lactate dehydrogenase to a pyruvate. In the presence of diaphorase, the NADH formed in the process reduces a tetrazolium salt to a blue formazan that is determined reflectometrically on the RQflex® 20.
Analysis Note
function control: entspricht
Assay
- standard 1:
4.5 - 5.5 mg/l
- standard 2: 22.5 - 27.5 mg/l
- standard 3: 45.0 - 55.0 mg/l
Assay
- standard 1:
4.5 - 5.5 mg/l
- standard 2: 22.5 - 27.5 mg/l
- standard 3: 45.0 - 55.0 mg/l
Legal Information
REFLECTOQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany
RQFLEX is a registered trademark of Merck KGaA, Darmstadt, Germany
Storage Class
11 - Combustible Solids
WGK
WGK 2
Regulatory Listings
Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.
7783-20-2
CAS No.
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According to the User Guide, Fruit Juices have to be diluted. What's the recommended dilution factor for Orange Juice, Pineapple Juice, Grapefruit Juice etc. Is there an application note available for fruit juices?
1 answer-
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How can I determine the shelf life / expiration / retest date of this product?
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If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdfHelpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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