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Table 1 Various evaluated components for the determination of arsenic in SPM samples

From: Quantifying uncertainty in the measurement of arsenic in suspended particulate matter by Atomic Absorption Spectrometry with hydride generator

Sample I.D.

Concentration of arsenic obtained from AAS-HG after reducing blank (μg/litre)

Concentration of Arsenic in ng/m3 [C AS ]

Volume made for test samples (Table 2) [V TEST ]

Volume of air processed through HVS at STP (m3) [V HVS ] [Table 7]

Total weight of SPM deposited on 18 cm × 23 cm filter paper (gm) [W TSPM ]*1 [Table 9]

Weight of SPM deposited on 18 cm × 11.5 cm filter paper area taken for analysis (gm) [W ANA ]*2 Table 9]

S-1

27.52 ± 1.28*

5.58 ± 0.271

50 ml

493.52

0.2210 ± 0.0021

0.1105 ± 0.0042

S-2

13.33 ± 0.87*

3.21 ± 0.182

50 ml

414.97

0.1136 ± 0.0041

0.0568 ± 0.0081

S-3

19.92 ± 0.97*

4.36 ± 0.212

50 ml

457.16

1.3088 ± 0.0004

0.6544 ± 0.0007

S-4

6.62 ± 0.65*

1.45 ± 0.112

50 ml

456.65

0.1406 ± 0.0033

0.0703 ± 0.0065

S-5

8.03 ± 0.73*

1.70 ± 0.122

50 ml

471.24

0.1896 ± 0.0025

0.0948 ± 0.0049

S-6

9.82 ± 0.83*

2.37 ± 0.131

50 ml

414.78

0.2404 ± 0.0019

0.1202 ± 0.0038

S-7

5.62 ± 0.59*

1.44 ± 0.113

50 ml

391.63

0.7760 ± 0.0006

0.3880 ± 0.0012

  1. *± Value obtained for six determinations of two replicates (three each)
  2. *2 and *3 = details of uncertainty in weighing in table 9.