Table 1 Quantitative analysis of As(III) and As(V) in laboratory samples

From: On-site quantitative analysis of As(III) and As(V) in aqueous phase using portable laser-induced fluorescence platform

Entry

Total Asa [µM]

As(III) [µM]

As(V) [µM]

As(III)/As(V)

1

1.002

0.286

0.716

0.40

2

1.995

0.638

1.357

0.47

3

3.010

1.130

1.880

0.60

4

4.003

1.589

2.414

0.66

5

4.998

1.975

3.023

0.65

6

6.007

2.247

3.760

0.60

7

7.008

2.648

4.360

0.61

8

7.911

3.394

4.517

0.75

9

9.002

3.732

5.270

0.71

  1. a Samples were prepared by diluting a standard solution of Na3AsO3 (100 µM) and exposed to air for months.
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