Malathion
Overview
Malathion is aｎ organophosphorous insecticide. It is used for multiple farm products. This kit allows an easy, rapid (within 2 hours), sensitive, quantitative, multi-sample analysis of malathion that remains in farm products. This kit is best applied for inspection at delivery time/prior to processing or primary screening in production sites.
Features
Comparison with instrumental analysis
While instrumental analysis offers high accuracy, it requires complicated and time-concuming pretreatment techniques, and sophisticated instrument operation as well as large quantities of acetone, hexane as organic solvents. The simpler pretreatment required for kit saves significant time. Additionally, only a small quantity of methanol is required as an extraction solvent for analyzing malathion.
Application examples
The figures show the comparison between standard curves with 10% methanol and reaction curves drawn with methanol extract of malathion-added farm products (diluted 10% methanol equivalent). The overlapping curves; demonstrate the suitability of this kit for analyzing trace malathion without any interference from the original produce
Manufactured by HORIBA
Specifications
The following data represent the basic kit performance. For more detailed specifications, please contact us.
Standard curve
Cross-reactivity
Pesticides | Cross-reactivity (%) |
|---|---|
Malathion | 100 |
Fenitrothion | 0.9 |
Thiometon | 0.4 |
Dimethoate | < 0.1 |
Acephate | 1.3 |
Fenobucarb | < 0.1 |
Fenvalerate | < 0.1 |
Permethrinl | < 0.1 |
Within-run reproducibility (lettuce)
Samples | Average(ppb) | SD | CV(%) |
|---|---|---|---|
A | 149 | 13.9 | 9.4 |
B | 78 | 4.9 | 6.3 |
C | 51 | 4.1 | 8.1 |
n=8
Between-analysts reproducibility (lettuce)
Samples | Average(ppb) | SD | CV(%) |
|---|---|---|---|
A | 147 | 10.9 | 7.4 |
B | 74 | 6.8 | 9.2 |
C | 58 | 6.2 | 10.7 |
n=3
Daily reproducibility (lettuce)
Samples | Average(ppb) | SD | CV(%) |
|---|---|---|---|
A | 143 | 11.9 | 8.3 |
B | 74 | 3.2 | 4.3 |
C | 53 | 7.1 | 13.4 |
n=3
Recovery test (lettuce)
Recovery concentration (ppm) | Recovery ratio (%) |
|---|---|
5.0 | 125.0±3.9 |
2.5 | 112.6±12.7 |
2.0 | 116.8±4.3 |
n=3
Results of within-reproducibility, daily reproducibility, between-analysts reproducibility and recovery test show that this test kit can quantitatively analyze malathion in produce.
Main kit components / shelf-life
Contents (form) | Volume | Quantity |
|---|---|---|
Antibody coated plate (dry form) | 8 rows x 12 columns | 1 piece |
Standard reagent L (freeze-dried: 15ppb) | 1mL (after dissolution) | 2 vials |
Standard reagent H (freeze-dried: 250ppb) | 1mL (after dissolution) | 2 vials |
Enzyme labeled Malathion reagent (freeze dried) | 6mL (after dissolution) | 2 vials |
Washing reagent (solution: 10 times concentrated) | 50mL | 1 vial |
Chromogenic reagent (solution) | 13mL | 1 vial |
Stop reagent (solution) | 13mL | 1 vial |
Shelf-life: | 8 months after product | storage at 2 to 8° |
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