K-CITR
SKU: 700004274
72 assays (manual) / 720 assays (microplate) / 840 assays (auto-analyser)
| Content: | 72 assays (manual) / 720 assays (microplate) / 840 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: | Citric Acid |
| Assay Format: | Spectrophotometer, Microplate, Auto-analyser |
| Detection Method: | Absorbance |
| Wavelength (nm): | 340 |
| Signal Response: | Decrease |
| Linear Range: | 1.0 to 100 µg of citric acid per assay |
| Limit of Detection: | 0.491 mg/L |
| Reaction Time (min): | ~ 5 min |
| Application examples: | Grape juice, wine, beer, fruit juices, soft drinks, tea, dairy products (e.g. cheese), meat, processed meat, vegetable and fruit products, bakery products, paper, pharmaceuticals, cosmetics and other materials (e.g. biological cultures, samples, etc.). |
| Method recognition: | Methods based on this principle have been accepted by MEBAK, OIV, EU, ISO2963, AOAC and IFU22 (NOTE: If the enzyme oxaloacetate decarboxylase is present in the sample, some of the oxaloacetate product is converted to pyruvate. Therefore, to ensure citric acid is measured quantitatively, D-lactate dehydrogenase (D-LDH) is employed to efficiently convert any pyruvate produced into D-lactate and NAD+). |
The Citric Acid test kit is a flexible and simple method for the rapid and reliable measurement and analysis of citric acid (citrate) in foods, beverages and other materials.
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).
View our full list of organic acid test kits.
Advantages
The Citric Acid test kit is a flexible and simple method for the rapid and reliable measurement and analysis of citric acid (citrate) in foods, beverages and other materials.
R-CAAR4
SKU: 700005034
200 assays per kit (4 vials)
| Content: | 200 assays per kit (4 vials) |
| 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: | α-Amylase |
| Assay Format: | Spectrophotometer, Auto-analyser |
| Detection Method: | Absorbance |
| Wavelength (nm): | 400 |
| Limit of Detection: | 0.05 U/mL |
| Reproducibility (%): | ~ 3% |
| Reaction Time (min): | ~ 30 min |
Purchase high purity Ceralpha: α-Amylase Reagent – 4 vials for the measurement of α-amylase for research, biochemical enzyme assays and in vitro diagnostic analysis.
p-Nitrophenyl α-D-maltoheptaoside (blocked), plus excess α-glucosidase and glucoamylase. For the measurement of cereal, fungal and bacterial α-amylase.
View our full range of reagent mixtures.
Purchase high purity Ceralpha: α-Amylase Reagent – 4 vials for the measurement of α-amylase for research, biochemical enzyme assays and in vitro diagnostic analysis.
p-Nitrophenyl α-D-maltoheptaoside (blocked), plus excess α-glucosidase and glucoamylase. For the measurement of cereal, fungal and bacterial α-amylase.
View our full range of reagent mixtures.
Attogene’s Microcystin Test Kit (Rapid – Lab) can be used to detect microcystins in liquid samples.
The most frequently reported cyanobacterial toxins are the hepatotoxic microcystins (MCs). MCs are peptides with a molecular weight ranging from 900 to 1,100 Da. They consist of seven amino acids of which the two terminal amino acids of the linear peptide are condensed to form a cyclic compound.
A tiered notification system which takes different actions based on different numeric thresholds for microcytin-LR concentrations in recreational waters has been developed. This is guidance that allows states to take various actions—such as posting information about harmful algal blooms (HABs), issuing a recreational public health advisory, or temporarily closing recreational waters through a no contact advisory—depending on the severity of the bloom event.
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
Screening of Algae Toxins Microcystins and Nodularins
Format: 10 tests (5 tests/5 control)
Not provided: Water Sample Bottles
Run Time: 10 Minutes