Page:NIOSH Manual of Analytical Methods - 9200.pdf/7

 CHLORINATED AND ORGANONITROGEN HERBICIDES (HAND WASH): METHOD 9200 - Page 7 of 11

TABLE 3. METHOD EVALUATION Applicable working range

Storage Stability LOD(1)

LOQ(2)

(µg/mL)

(µg/mL)

%Recovery

Sr

%Recovery

Sr

%Recovery

Sr

30 Days

60 days

120 days

Compound

(µg/mL)

(µg/sample)

Alachlor

0.0015 - 0.2

0.22 - 30

0.028

0.001

0.004

103.0

0.027

87.1

0.149

95.4

0.137

Atrazine

0.088 - 1.1

13 - 160

0.024

0.010

0.037

100.9

0.041

86.0

0.123

89.4

0.075

Cyanazine

0.0099 - 0.2

1.5 - 30

0.094

0.002

0.006

105.3

0.120

88.1

0.197

87.7

0.167

2,4-D acid

0.0017 - 0.11

0.26 -16

0.035

0.001

0.004

101.9

0.019

108.4

0.169

105.5

0.111

2,4-D, BE

0.0019 - 0.12

0.28 - 18

0.084

0.001

0.004

103.5

0.071

79.3

0.175

76.5

0.159

2,4-D, EH

0.0075 - 0.05

1.1 - 7.5

0.040

0.0005

0.002

104.4

0.069

85.6

0.135

81.7

0.108

Metolachlor

0.0039 - 0.22

0.58 - 33

0.030

0.002

0.007

102.8

0.025

87.1

0.145

89.8

0.103

12 - 160

0.031

0.010

0.037

127.7

0.045

83.4

0.140

91.4

0.2

Simazine

0.082 - 1.1

(1)

Limit of Detection

(2)

Limit of Quantitation

r

NIOSH Manual of Analytical Methods (NMAM), Fourth Edition