Table 1 Arsenic concentration range and arsenic (as As) detection by FTKs.
Arsenic (as As) in µg/L | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Concentration points | AsKit-1 | AsKit-2 | AsKit-3 | AsKit-4 | ||||||||
DM | M1 | M2 | DM | M1 | M2 | DM | M1 | M2 | DM | M1 | M2 | |
Blank | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
Blank | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
Blank | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
Blank | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
5 | CNS | CNS | CNS | CNS | CNS | CNS | ~ 10 | ~ 10 | ~ 10 | > 5 & < 10 | > 5 & < 10 | > 5 & < 10 |
10 | ~ 10 | ~ 10 | > 10 & < 20 | > 10 & < 25 | > 10 & < 25 | > 10 & < 25 | ~ 10 | > 10 & < 25 | > 10 & < 25 | > 10 & < 20 | > 10 & < 20 | > 10 & < 20 |
20 | ~ 20 | ~ 20 | 20 | CNS | CNS | CNS | CNS | CNS | CNS | ~ 20 | ~ 20 | ~ 20 |
25 | CNS | CNS | CNS | ~ 25 | ~ 25 | ~ 25 | ~ 25 | ~ 25 | ~ 25 | CNS | CNS | CNS |
30 | ~ 30 | ~ 30 | ~ 30 | CNS | CNS | CNS | CNS | CNS | CNS | ~ 30 | ~ 30 | ~ 30 |
40 | ~ 40 | ~ 40 | ~ 40 | CNS | CNS | CNS | CNS | CNS | CNS | CNS | CNS | CNS |
50 | ~ 50 | ~ 50 | ~ 50 | ~ 50 | ~ 50 | ~ 50 | ~ 50 | ~ 50 | ~ 50 | ~ 50 | ~ 50 | ~ 50 |
60 | ~ 60 | ~ 60 | ~ 60 | CNS | CNS | CNS | CNS | CNS | CNS | CNS | CNS | CNS |
70 | ~ 70 | ~ 70 | ~ 70 | CNS | CNS | CNS | CNS | CNS | CNS | ~ 70 | ~ 70 | ~ 70 |
80 | ~ 80 | ~ 80 | ~ 80 | CNS | CNS | CNS | CNS | CNS | CNS | CNS | CNS | CNS |
90 | ~ 90 | ~ 90 | ~ 90 | CNS | CNS | CNS | CNS | CNS | CNS | CNS | CNS | CNS |
100 | ~ 100 | ~ 100 | ~ 100 | ~ 100 | ~ 100 | ~ 100 | ~ 100 | ~ 100 | ~ 100 | ~ 100 | ~ 100 | 100 |
250 | CNS | CNS | CNS | CNS | CNS | CNS | ~ 250 | ~ 250 | ~ 250 | CNS | CNS | CNS |
500 | CNS | CNS | CNS | ~ 500 | ~ 500 | ~ 500 | ~ 500 | ~ 500 | ~ 500 | CNS | CNS | CNS |
