AOAC-RI ERP Book - FAOM METHOD.pdf

1056 C HANG ET AL .: J OURNAL OF AOAC I NTERNATIONAL V OL . 99, N O . 4, 2016

Table 4. Deviation ratios of predicted and determined results of c concn at different time intervals a

Time interval, days

No.

Pesticide 7ULÀXUDOLQ 7HÀXWKULQ

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 13.3 14.1 11.6 í 21.0 15.4 14.1 18.0 11.6 16.0 í 17.8 10.0 19.2 11.4 21.5 20.3 20.2 15.2 17.4 16.0 14.1 15.1 25.5 16.1 19.7 12.2 23.5 20.3 20.7 17.8 20.6 21.2 26.0 25.3 21.4 5.4 11.2 9.7 3.6 3.5 7.7 6.2 9.0 0.3 11.1 6.6 8.8 6.3 11.7 10.4 20.0 13.7 14.1

1 2 3

Pyrimethanil

4 Propyzamide 6.9 11.4 9.9 3.6 4.9 7.6 9.2 7.1 0.0 11.4 3.4 8.6 8.9 8.6 7.8 15.4 12.4 10.4 5 Pirimicarb 7.4 11.9 10.7 5.7 9.5 13.7 11.6 11.2 8.1 15.7 8.5 12.6 11.5 13.2 13.4 20.6 17.1 14.5 6 Dimethenamid 9.4 13.0 11.4 6.6 15.3 18.0 17.6 16.3 7.9 17.5 12.3 17.2 13.7 19.9 17.0 24.0 21.4 18.9 7 Fenchlorphos 6.5 12.8 11.3 í 9.2 12.8 4.1 12.0 8.0 13.9 3.8 15.6 16.0 17.7 12.7 24.4 19.3 18.5 8 Tolclofos-methyl 9.5 13.7 11.8 5.8 11.9 9.4 8.2 13.6 9.2 16.1 9.7 17.0 15.8 17.4 14.5 23.1 19.9 17.6 9 Pirimiphos-methyl 9.2 13.9 13.0 6.1 11.2 10.1 9.2 13.1 í 13.1 11.3 13.5 12.9 16.0 14.9 21.8 20.6 17.6 10 ƍ ''( 0.8 5.6 7.0 4.5 4.1 í 5.3 2.6 0.2 7.3 5.7 4.1 0.4 4.3 6.7 10.8 11.3 4.6 11 Bromophos-ethyl 3.8 10.5 10.8 2.4 8.0 1.2 5.6 6.0 5.7 10.5 3.4 11.6 9.2 13.2 10.7 17.8 16.8 12.4 12 ƍ ''( 0.4 5.2 6.4 3.9 3.5 í 4.5 1.8 í 6.4 5.4 4.5 0.4 5.2 7.9 10.8 11.4 5.6 13 Procymidone í 4.0 5.7 4.4 3.7 í 6.3 í í 4.8 2.0 3.9 í 1.9 6.2 9.8 8.6 2.9 14 Picoxystrobin í 2.7 5.5 4.0 2.5 í 8.4 í í 3.2 0.4 3.2 í 2.1 6.2 8.9 7.1 0.1 15 Quinoxyfen 2.3 11.2 10.1 4.1 1.2 í 8.1 í í 0.7 í 2.1 í 4.5 5.6 14.7 6.1 3.2 16 Chlorfenapyr í 4.6 6.2 2.0 2.9 í 6.7 í í 3.1 í 3.7 í 2.3 4.0 8.4 6.0 í 17 Benalaxyl í 4.2 4.6 4.0 3.0 í 6.8 í í 4.6 1.7 4.3 í 3.0 7.4 8.7 6.5 í 18 Bifenthrin í 4.3 5.4 7.8 3.1 í 10.0 í í 3.5 4.2 4.7 í 3.7 8.9 11.1 7.8 í 19 'LÀXIHQLFDQ í 9.1 7.3 2.0 1.8 í 9.5 í í 0.5 í 2.3 í 4.7 6.6 13.5 8.2 2.5 20 Bromopropylate í 9.1 7.3 í 6.0 í 10.5 í í 2.1 í 4.5 í 10.0 6.9 10.2 7.4 0.3 a 9DOXHV DUH GHYLDWLRQ UDWLRV FDOFXODWHG DV GHWHUPLQHG UHVXOW í SUHGLFWHG YDOXH î · GHWHUPLQHG UHVXOW

decrease of the deviation ratio of initial values, the deviation ratio of predicted and measured results gets smaller. It can be concluded that the closer their initial values, the better the results obtained.

ratios of predicted and measured results also have the relatively higher deviation ratios of their initial values (10.1–13.7 ). However, the deviation ratios of initial values of the other 14 pesticides were <10 , with a range of 0.1–9.1 . With the

Table 5. Initial values of c and d concns and the range of deviation ratios of predicted and determined results

Initial value

Range of deviation UDWLR b

Revised range of deviation UDWLR c

a

No.

Pesticide 7ULÀXUDOLQ 7HÀXWKULQ

c &RQFQ ȝJ NJ

d &RQFQ ȝJ NJ 'HYLDWLRQ UDWLR

1 2 3 4 5 6 7 8 9

214.4 106.1 116.9 119.6 114.7 240.3 116.7 113.0 451.7 116.0 451.7 117.9 234.0 115.9 965.0 116.8 112.9 118.6 237.4 46.2

248.6 122.6 124.7 126.6 126.2 267.4 130.5 126.3 466.9 124.2 466.9 120.3 236.0 116.4 966.0 118.9 114.8 119.4 240.0 51.9

13.7 13.5

í WR

í WR

12.2–26.0 0.3–20.0

12.2–25.5 0.3–14.1

Pyrimethanil Propyzamide

6.3 5.5 9.1

0–15.4

0–12.4

Pirimicarb

5.7–20.6 6.6–24.0

5.7–17.1 6.6–21.4

Dimethenamid Fenchlorphos Tolclofos-methyl Pirimiphos-methyl

11.1 10.1 10.5 10.6

í WR

í WR

5.8–23.1

5.8–19.9

í WR í WR

í WR í WR

10 11 12 13 14 15 16 17 18 19 20

ƍ ''(

3.3 6.6 3.3 2.0 0.9 0.4 0.1 1.7 1.7 0.7 1.1

Bromophos-ethyl

1.2–17.8

1.2–16.8

ƍ ''(

í WR í WR í WR í WR í WR í WR í WR í WR í WR

í WR í WR í WR í WR í WR í WR í WR í WR í WR

Procymidone Picoxystrobin Quinoxyfen Chlorfenapyr

Benalaxyl Bifenthrin

'LÀXIHQLFDQ

Bromopropylate

a 'HYLDWLRQ UDWLRV DUH FDOFXODWHG DV d &RQFQ í c FRQFQ î · d concn. b %HWZHHQ SUHGLFWHG DQG GHWHUPLQHG UHVXOWV c %HWZHHQ SUHGLFWHG DQG GHWHUPLQHG UHVXOWV ZLWKRXW WKH GD\ LQWHUYDO UHVXOWV