OMA Protocol Review: OMAMAN-56 Sulfites in Shrimp

BOILED SHRIMP

0 100 200 300

y = 0.8741x + 5.4459 R² = 0.99886

0

50 100 150 200 250 300 350

Biofish results (mg/kg)

OMA results (mg/kg)

Figure 8. Graph of mean Biofish results vs OMA results for incurred boiled shrimp.

Table 6. Method developer results for raw shrimp head off fortified with sodium metabisulfite Level Metho d N Day/Anal yst Result (mg/kg ) Accuracy (%) (mean Biofish /mean OMA )* 100 Bias Biofish mean Biofish - mean OMA ) Sr RSDr (%) [s r /mean cand ] x 100 Low level OMA 3 Day 1 28 - 1.5 5.5 BIOFIS H 5 Day 1/ Analyst 1 30 109 2.5 1.6 5.4

(30- 150

5 Day 2/

30

108

2.3

1.7

5.8

Analyst 2

mg/kg range)

Mediu m level 1

OMA 3 Day 1

53

-

-

4.0

7.7

BIOFIS H

5 Day 1/

57

109

4.5

2.6

4.5

Analyst 1

(30- 150

5 Day 2/

55

104

2.1

2.6

4.7

Analyst 2

mg/kg range)

Mediu m level 2

OMA 3 Day 1

87

-

-

3.5

4.1

BIOFIS H

5 Day 1/

99

115

12.7

4.3

4.4

Analyst 1

(30- 150

5 Day 2/

90

104

3.7

3.2

3.6

Analyst 2

mg/kg range)

High Level

OMA 3 Day 1

340

-

-

3.0

0.9

BIOFIS H

5 Day 1/

292

86

-48.2

13.1

4.5

Analyst 1

19