Page:NIOSH Manual of Analytical Methods - 7304.pdf/9

 ELEMENTS by ICP (Microwave Digestion): METHOD 7304, Issue 1, dated 25 June 2014 - Page 9 of 11

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

Wavelength (nm)

LOD (µg/ sample)

µg/ sample

N=

Percent Recovery

Se

196.09

5

75.0

5

102.05

196.02

2

75.0

5

99.93

(1)

Se

(2)

Precision

Precision

µg/ N= sample

Percent Recovery

0.0531

7500

6

111.35

0.0063

0.0051

7500

6

99.72

0.0082

(Sr)

(Sr)

Sn

189.9

75.0

5

30.82

0.0502

7500

6

79.56

0.0124

Sn(2,3)

189.9

0.4

75.0

5

37.87

0.0816

7500

6

92.34

0.0129

Sr

421.55

0.04

7.50

5

100.00

0.0049

750

6

99.54

0.0055

Te

214.27

4

30.0

5

95.80

0.0624

3000

6

110.81

0.0094

Te(2)

214.28

2

30.0

5

97.18

0.0100

3000

6

99.64

0.0074

Ti

337.28

0.2

3.00

5

81.66

0.0392

300

6

103.42

0.0101

Ti

334.94

0.1

3.00

5

82.68

0.0374

300

6

96.13

0.0121

Tl

190.86

2

15.0

5

96.38

0.0605

1500

6

97.25

0.0148

(3)

Tl

190.79

1

15.0

5

97.75

0.0032

1500

6

92.04

0.0119

V

292.40

0.1

1.50

5

104.54

0.0528

150

6

111.15

0.0160

V(2)

292.40

0.09

1.50

5

100.99

0.0146

150

6

99.38

0.0232

Y

371.03

0.07

0.752

5

105.98

0.0245

75.2

6

105.03

0.0073

(3)

Higher Level(5)

Zn

213.85

0.2

3.00

5

110.76

0.0327

300

6

116.84

0.0153

Zn(2)

213.86

0.4

3.00

5

93.45

0.0351

300

6

94.01

0.0055

Zr

339.20

0.2

1.50

5

102.61

0.0242

150

6

101.56

0.0144

(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