Emamectin

Overview

Emamectin is one of macrolide insecticides.  It is used for multiple farm products because of its wide insecticidal activity range.  This kit allows an easy, rapid (within 2 hours), sensitive, quantitative, multiple sample analysis of emamectin that remains in farm products or in the environment.  This kit is best applied for inspedtion 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-consuming fluorescent derivatization, and sophisticated instrument operation as well as a large quantity of organic solvent such as methanol.  The simpler pretreatment required for kit saves significant time.  Additionally, only a small quantity of methanol is required as an extraction solvent for analyzing emamectin.

          Application examples

The figures show the comparison between standard curve with 10% methanol and reaction curve drawn with methanol extract of emamectin-added farm products (diluted to 10% methanol equivalent).  The overlapping curves; demonstrate the suitability of this kit for analyzing trace emamectin 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

Structure analog

Cross-reactivity (%)

Emamectin benzoate

100

Emamectin metabolite (amino body)

113

Emamectin metabolite (hormone amino body)

55

Emamectin metabolite (N-methyl hormone amino body)

38

Emamectin metabolite (8,9- Z isomeric form)

9.1

Abamectin

78

Milbemectin

< 0.1

Other natural origin pesticide

Cross-reactivity (%)

Spinosyn A

< 0.1

Validamycin

< 0.1

Streptomycin

< 0.1

Within-run reproducibility (tomato)

Samples

Average (ppb)

SD

CV(%)

A

0.5

0.03

5.4

B

1.4

0.07

5.0

C

2.4

0.13

5.4

n=8

          Between-analysts reproducibility (tomato)

Samples

Average (ppb)

SD

CV(%)

A

0.2

0.01

6.5

B

0.6

0.03

4.7

C

1.1

0.04

3.5

n=3

Daily reproducibility (tomato)

Samples

Average (ppb)

SD

CV(%)

A

0.5

0.03

5.6

B

1.3

0.07

5.2

C

2.4

0.09

0.09

n=3

          Recovery test (tomato)

Concentration of addition (ppm)

Recovery ratio (%)

0.30

103.9±2.9

0.10

99.8±4.2

0.03

108.9±3.6

n=3

Results of within-run reproducibility, daily reproducibility, between-analysts reproducibility and recovery test show that this kit can quantitatively analyze emamectin in procuce. 

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: 1.5ppb)

2mL

1 vial

Standard reagent H (freeze-dried: 15ppb)

2mL

1 vial

Enzyme-labeled Emamectin reagent (freeze-dried)

6mL (after dissolution)

2 vials

Dissolution / dilution reagent

40mL

1 vial

Washing reagent (solution: 10 times concentrated)

50mL

1 vial

Chromogenic reagent (solution)

13mL

1 vial

Stop reagent (solution)

13mL

1 vial

Shelf-life:

12 months after production

Storage at 2 to 8°C