Lateral Flow Assay designed for the detection of IgG antibodies against PF4/polyanion-complexes in human citrated plasma or Serum
Detail
20 tests
Name of Product
HIT – Heparin-Induced Thrombocytopenia Test (20)
Catalog Number
MQHIT 1
Short Info
Lateral Flow Assay designed for the detection of IgG antibodies against PF4/polyanion-complexes in human citrated plasma or Serum
This product is only available in Germany!
Method/Platform
lateral flow, immunoassay
Range/Assay Sensivity
Test Principle
IgG antibodies are resposible for the heparin induced thrombocytopenia.
Immobilized anti-human IgG on the membrane of the test unit binds patients IgG-antibodies which are previously captured by the PF4/polyanion-complex which is detected by intensely colored gold nanoparticles.
The presence of PF4/polyanion-complex becomes visible at a colored test line. The surplus of gold particles continues to migrate through the membrane and is captured at the control line by specific antibodies.
Short term stability: 2-8oC, Long term stability: See individual component labels
Stability:
> 2 years under recommended storage conditions
Analyte:
endo-Cellulase
Assay Format:
Spectrophotometer, Auto-analyser
Detection Method:
Absorbance
Wavelength (nm):
400
Signal Response:
Increase
Limit of Detection:
1.2 x 10-3 U/mL
Reproducibility (%):
~ 3%
Total Assay Time:
10 min
Application examples:
Fermentation broths, industrial enzyme preparations and biofuels research.
Method recognition:
Novel method
The K-CellG5-2V pack size has been discontinued (read more).
Cellulase Activity Assay Kit.
The CellG5 assay reagent for the measurement of endo-cellulase (endo-1,4-β-glucanase) contains two components; 1) 4,6-O-(3-Ketobutylidene)-4-nitrophenyl-β-D-cellopentaoside (BPNPG5) and 2) thermostable β-glucosidase. The ketone blocking group prevents any hydrolytic action by the β-glucosidase on BPNPG5. Incubation with an endo-cellulase generates a non-blocked colourimetric oligosaccharide that is rapidly hydrolysed by the ancillary β-glucosidase. The rate of formation of 4-nitrophenol is therefore directly related to the hydrolysis of BPNPG5 by the endo-cellulase. The reaction is terminated and the phenolate colour is developed on addition of Tris buffer solution (pH 9.0).
The CellG5 assay represents a huge step forward in the methodology for the measurement of cellulase that traditionally relied on substrates such as CM-cellulose, Avicel, cellooligosaccharides, filter paper or dyed polysaccharides including CMC Congo red or cellulose azure.
The CellG5 assay reagent for the measurement of endo-cellulase (endo-1,4-β-glucanase) contains two components; 1) 4,6-O-(3-Ketobutylidene)-4-nitrophenyl-β-D-cellopentaoside (BPNPG5) and 2) thermostable β-glucosidase. The ketone blocking group prevents any hydrolytic action by the β-glucosidase on BPNPG5. Incubation with an endo-cellulase generates a non-blocked colourimetric oligosaccharide that is rapidly hydrolysed by the ancillary β-glucosidase. The rate of formation of 4-nitrophenol is therefore directly related to the hydrolysis of BPNPG5 by the endo-cellulase. The reaction is terminated and the phenolate colour is developed on addition of Tris buffer solution (pH 9.0).
Short term stability: 2-8oC, Long term stability: See individual component labels
Stability:
> 2 years under recommended storage conditions
Analyte:
Lactose
Assay Format:
Spectrophotometer
Detection Method:
Absorbance
Wavelength (nm):
340
Signal Response:
Increase
Linear Range:
1 to 50 µg of lactose (or 0.50 to 25 µg of D-glucose)
Limit of Detection:
1.62 mg/L
Reaction Time (min):
~ 10 min
Method recognition:
AOAC Method 2020.08
The K-LOLAC test kit offers a rapid, novel, sequential measurement of free-glucose and lactose in conventional, low-lactose and lactose-free dairy products. This sequential assay format reduces the manual input required by an analyst when compared to traditional lactose assay formats and therefore improves both accuracy and efficiency. When used in combination with the Megazyme Creep Calculator provided, the β-galactosidase employed in this kit allows for the selective measurement of lactose in the presence of galacto-oligosaccharides (GOS) which are commonly found in lactose-free dairy products. This constitutes a significant improvement over existing commercially available lactose assay kits which typically overestimate lactose content in lactose-free samples due to the unselective hydrolysis of GOS by β-galactosidase. Lastly, the sensitivity of the K-LOLAC assay kit has been doubled through the use of a cascade biochemical pathway, helping to significantly reduce the LOD and LOQ for the assay.
