Page:NIOSH Manual of Analytical Methods - 7304.pdf/8

 ELEMENTS by ICP (Microwave Digestion): METHOD 7304, Issue 1, dated 25 June 2014 - Page 8 of 11

Table 3. MEASUREMENT WAVELENGTHS AND RECOVERY DATA Lower Level(4,5) Element

Wavelength (nm)

LOD (µg/ sample)

µg/ sample

N=

Percent Recovery

Ag

328.07

0.1

3.00

5

63.01

Al

308.22

2

50.25(4)

6

89.78

Al(2)

308.214

0.5

15.0

5

As

193.76

2

15.0

5

Ba

493.41

0.2

1.50

B

249.68

0.4

Be

313.04

0.008

Ca

315.89

Ca

(1)

Higher Level(5) Precision

Precision

µg/ N= sample

Percent Recovery

0.0739

300

6

3.92

0.0865

0.0565

1500

6

100.71

0.0055

115.05

0.0199

1500

6

105.17

0.0056

93.29

0.0570

1500

6

115.84

0.0174

5

107.16

0.0295

150

6

102.22

0.0104

7.50

5

86.38

0.0277

750

6

101.19

0.0082

0.152

6

102.38

0.0861

15.2

6

107.71

0.0091

151

6

94.64

0.0512

4500

6

116.25

0.0153

(4)

(Sr)

(Sr)

315.88

2

45.0

5

104.82

0.0090

4500

6

98.13

0.0066

Cd

228.80

0.2

3.00

5

109.65

0.0316

300

6

111.68

0.0152

Co

228.62

0.7

7.50

5

89.87

0.0338

750

6

114.15

0.0141

(2)

Cr

267.72

0.7

7.50

5

112.65

0.0233

750

6

118.65

0.0136

Cr(2) Cu

267.71

0.3

7.50

5

102.60

0.0048

750

6

92.98

0.0066

324.75

0.08

1.50

5

106.84

0.0364

150

6

100.42

0.0058

(2)

Cu

324.75

0.08

1.50

5

117.16

0.0361

150

6

103.13

0.0150

Fe

259.94

15

30

5

120.58

0.0405

3000

6

112.41

0.0083

Fe(2)

259.94

5

30

5

112.55

0.0489

3000

6

97.20

0.0085

K

766.49

3

100(4)

6

85.57

0.0254

3000

6

86.46

0.0260

K

766.49

100

6

99.40

0.0300

3000

6

90.02

0.0205

Li

670.78

0.06

1.50

5

97.51

0.0253

150

6

81.96

0.0378

Mg

279.08

0.9

15.0

5

105.25

0.0088

1500

6

97.47

0.0077

(2)

(4)

Mg

279.07

0.4

15.0

5

107.33

0.0043

1500

6

101.75

0.0058

Mn

257.61

0.09

1.50

5

110.24

0.0150

150

6

115.56

0.0090

Mo

202.03

0.4

4.50

5

87.79

0.0433

450

6

120.57

0.0093

Mo(2)

202.029

0.3

4.50

5

89.75

0.0215

450

6

100.44

0.0154

Na

589.00

5

75.0

6

124.56

0.0859

7500

6

83.07

0.0248

Ni

231.60

0.3

4.50

5

102.93

0.0475

450

6

110.59

0.0080

Ni(2)

231.60

0.2

4.50

5

109.91

0.0047

450

6

101.77

0.0139

P

214.92

2

30.0

5

81.82

0.0511

3000

6

107.20

0.0103

(2)

P

214.91

2

30.0

5

86.36

0.0077

3000

6

103.33

0.0174

Pb

220.35

1

15.0

5

95.85

0.0308

1500

6

100.54

0.0154

Pt

203.65

9

150

5

104.67

0.0182

15000

6

105.19

0.0088

206.84

0.7

15.0

6

25.29

0.5861

1500

6

111.95

0.0086

(2)

Sb

(3)

(1) Values reported were obtained with a Fisons ARL Accuris ICP-AES unless otherwise noted; performance may vary with instrument and should be independently verified. (2) Values reported were obtained with a Perkin Elmer Optima 3000 DV ICP-AES. (3) Elements that were evaluated and found not suitable for analysis by this method. (4) Values given (lower level) are for the 10xLOQ level due to low recoveries at the 3xLOQ level. (5) LOQ = Estimated limit of quantitation

NIOSH Manual of Analytical Methods (NMAM), Fifth Edition