OMA Protocol Review: OMAMAN-56 Sulfites in Shrimp

RAW SHRIMP HEAD OFF

100 150 200

y = 0.9631x + 5.8302 R² = 0.99658

0 50

0

50

100

150

200

Biofish results (mg/kg)

OMA results (mg/kg)

Figure 7. Graph of mean Biofish results vs OMA results for incurred raw shrimp head off.

Table 5. Method developer results for incurred boiled shrimp Level Metho d N Day/Anal yst Result (mg/kg ) Accuracy (%) (mean Biofish /mean OMA )* 100

Bias Biofish mean Biofish - mean OMA )

Sr

RSDr (%) /mean cand

[s r

] x

100 3.2

Low level

OMA 3 Day 1

48

-

-

1.5

BIOFIS H

5 Day 1/

44

92

-3.9

1.9

4.4

Analyst 1

(30- 150

5 Day 2/

46

96

-1.9

2.3

5.0

Analyst 2

mg/kg range)

Mediu m level

OMA 3 Day 1

55

-

-

2.3

4.2

BIOFIS H

5 Day 1/

58

106

3.3

2.2

3.9

Analyst 1

(50- 300

5 Day 2/

54

98

-0.9

2.8

5.2

Analyst 2

mg/kg range)

High Level

OMA 3 Day 1

289

-

-

2.0

0.7

BIOFIS H

5 Day 1/

254

88

-35.2

12.9

5.1

Analyst 1

(50- 300

5 Day2/

262

91

-26.8

8.3

3.2

Analyst 2

mg/kg range)

18