AOAC-RI ERP Book - FAOM METHOD.pdf

3/9/2017

 Method efficiencies of GC-MS, GC-MS/MS and LC-MS/MS

 Method efficiency of GC-MS determination of 20 pesticides (16 Labs) Samples Avg, Rec, %

RSD r

, %

RSD R

, %

HorRat

Green tea fortified samples

87.0-96.0

2.1-4.9

6.5-9.9

0.3-0.5

Oolong tea fortified samples

81.0-91.1

2.8-7.8

12.5-25.0

0.5-1.3

Oolong tea aged samples

-

2.1-6.1

9.1-20.0

0.4-1.0

Green tea incurred

-

3.3-4.0

12.2-23.0

0.7-1.0

 Method efficiency of GC-MS/MS determination of 20 pesticides (14 Labs)

Samples

Avg, Rec, %

RSD r

, %

RSD R

, %

HorRat

Green tea fortified samples

87.0-97.1

3.1-6.0

6.6-14.8

0.3-0.7

Oolong tea fortified samples

77.1-90.8

1.4-5.4

7.0-32.7

0.4-1.3

Oolong tea aged samples

-

4.6-9.6

21.7-34.7

1.1-1.8

Green tea incurred

-

5.6-5.6

14.1-22.2

0.8-0.9

 Method efficiency of LC-MS/MS determination of 20 pesticides (23 Labs)

Samples

Avg, Rec, %

RSD r

, %

RSD R

, %

HorRat

Green tea fortified samples

91.7-97.2

4.9-8.6

8.0-15.8

0.3-0.6

Oolong tea fortified samples

81.7-93.8

3.6-10.5

13.8-30.4

0.4-1.3

Oolong tea aged samples

-

5.1-9.3

16.8-35.1

0.7-1.6

Green tea incurred

-

8.9-10.8

21.1-24.5

0.8-1.1

Based on the results from the statistical analysis of AOAC method efficiency software, all the parameters derived from the experiment have fulfilled the technical requirements of AOAC standards.

An overview on how your organization can obtain feedback for your method performance? Date: July 14-Aug 20, 2016. Feedback requested from: 30 collaborative laboratories and 45 laboratories using Cleanert TPT. The feedback information has been received from a total of 15 laboratories (excluding the information submitted online), including three overseas laboratories: Japan, Spain and Taiwan of China, and see the table below.

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Lab

Organization

Lab-1

Asia pacific technicalcenter, the coca-cola company

Y

N

Y

N

N

Y

Inspection & QuarantineTechnique Centre of Fujian Entry-exit Inspection and QuarantineBureau HuangshanTea QualityAnd Safety Research Center of Huangshan Entry- Exit Inspection & Quarantine Bureau

Lab-2

Y

N

N

Y

N

N

Y

Y

Y

Y

N

N

Lab-3

Food inspection central of CIQ ShenZhen

Y Y Y N Y Y Y Y Y Y Y Y

N N N N Y N N Y Y Y Y Y

N N N N Y Y N Y Y Y Y Y

Y Y N N Y N Y Y N Y Y Y

N N N N Y N N Y N Y Y N

N N N N N N N N N N Y Y

Lab-4 Lab-5 Lab-6 *Lab-7 Lab-8 Lab-9 Lab-10 Lab-11 Lab-12 Lab-13 Lab-14 Lab-15

QinhuangdaoEntry-exit Inspection and QuarantineBureau Japan grain inspection association central research laboratory

Tundingsubstation, tea research and extension station, executive yuan,(Taiwan)

Tea research institute ChineseAcademy of agricultural sciences

EURL-FV, University of Almería

Dalianentry-exit inspection and quarantine bureau

ICAS Testing Center (Shanghai)

BENGBUCenter for Disease Control and prevention

Shanghai BinoTesting Service Co., Ltd DENO TESTING Service (Shanghai)

Tea Research Institute, Chinese Academy of Agricultural Sciences

* This lab didn’t use the method, so its feedback is not used for analysis.

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