Propargyl-PEG4-bromide is a crosslinker that can be used in copper catalyzed azide-alkyne Click Chemistry to form a stable triazole linkage with azides. The bromide (Br) acts as a good leaving group for nucleophilic substitution reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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Propargyl-PEG4-bromide is a crosslinker that can be used in copper catalyzed azide-alkyne Click Chemistry to form a stable triazole linkage with azides. The bromide (Br) acts as a good leaving group for nucleophilic substitution reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Short term stability: 2-8oC, Long term stability: See individual component labels
Stability:
> 1 year under recommended storage conditions
Analyte:
L-Glutamic Acid, MSG
Assay Format:
Spectrophotometer, Microplate, Auto-analyser
Detection Method:
Absorbance
Wavelength (nm):
492
Signal Response:
Increase
Linear Range:
0.4 to 20 µg of L-glutamic acid per assay
Limit of Detection:
0.21 mg/L
Reaction Time (min):
~ 8 min
Application examples:
Fruit and vegetables (e.g. tomato), processed fruit and vegetables (e.g. tomato puree / juice, ketchup, soy sauce), condiments, processed meat products (e.g. extracts, bouillon and sausages), soup, pharmaceuticals and other materials (e.g. biological cultures, samples, etc.).
Method recognition:
Methods based on this principle have been accepted by ISO, GOST and NMKL
The L-Glutamic Acid test kit is a simple, reliable, rapid and accurate method for the measurement and analysis of L-glutamate (MSG) in foodstuffs.
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).
endo-BCN-PEG3-acid is a click chemistry linker consisting of a BCN group with a terminal carboxylic acid. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to yield a amide bond. The BCN group can react with azide-tagged biomolecules. The hydrophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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endo-BCN-PEG3-acid is a click chemistry linker consisting of a BCN group with a terminal carboxylic acid. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to yield a amide bond. The BCN group can react with azide-tagged biomolecules. The hydrophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Microcystin are a class of hepatotoxins produced by blue-green algae such as Microcystis aeruginosa. Microcystin-LR is the most common of the over 50 different congeners. Cyanobacteria can produce microcystin in large quantities during an algae bloom which then pose a major threat.
This kit can be used for Congener-Independent quantitative test of Microcystin in liquid samples such as drinking, ambient and waste water and algal cultures.
Additional Quality Control, Calibration Verification, and Spiking Solution materials can be obtained separately in optional Supplemental Pack for Method 546 (catalog # EL2024-Q).
Microcystin-LR
Informational sign postings about HABs at recreational waters: < 6 μg/L
Recreational public health advisory: 6 μg/L
Elevated recreational public health advisory (e.g. no contact): 20 μg/L
EPA 10-day drinking water health advisories:
Do Not Drink – 0.3 μg/L for bottle fed infants and preschool children, pregnant and nursing woman, elderly immunocompromised and liver conditions.
Do Not Drink – 1.6 μg/L for school-age children to adults.
Do not Use – 20 μg/L
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Format: 96-well microtiter plate (12 test strips of 8 wells)
Standards: 0 | 0.15 | 0.4 | 1 | 2 | 5 ppb
Incubation Time: 75 Minutes
Compatible for use with US EPA Method 546