Samples
|
[Cd(II)] taken (mg mL−1)
|
Intra-day
|
Inter-day
|
---|
[Cd(II)] found (mg mL−1)
|
Recovery (%)
|
SD
|
RSD* (%)
|
[Cd(II)] found (mg mL−1)
|
Recovery (%)
|
SD
|
RSD** (%)
|
---|
Pure solution
|
0.25
|
0.247
|
98.8
|
0.003
|
1.26
|
0.247
|
98.8
|
0.005
|
2.02
|
0.30
|
0.296
|
98.6
|
0.007
|
2.36
|
0.296
|
98.6
|
0.002
|
0.67
|
River water
|
0.25
|
0.249
|
99.6
|
0.007
|
2.81
|
0.247
|
98.8
|
0.003
|
1.21
|
0.30
|
0.294
|
98.0
|
0.005
|
1.70
|
0.299
|
99.6
|
0.004
|
1.34
|
Industrial wastewater
|
0.25
|
0.243
|
97.2
|
0.006
|
2.47
|
0.245
|
98.0
|
0.006
|
2.45
|
0.30
|
0.293
|
97.6
|
0.008
|
2.73
|
0.296
|
98.6
|
0.008
|
2.70
|
Rechargeable battery waste
|
0.25
|
0.248
|
99.2
|
0.006
|
2.42
|
0.247
|
98.8
|
0.006
|
2.43
|
0.30
|
0.291
|
97.0
|
0.005
|
1.70
|
0.294
|
98.0
|
0.001
|
0.34
|
Plant foodstuff (carrot)
|
0.25
|
0.243
|
97.2
|
0.003
|
1.23
|
0.245
|
98.0
|
0.009
|
3.67
|
0.30
|
0.292
|
97.3
|
0.004
|
1.37
|
0.293
|
97.6
|
0.006
|
2.05
|
Fish tissue
|
0.25
|
0.245
|
98.0
|
0.004
|
1.63
|
0.248
|
99.2
|
0.003
|
1.21
|
0.30
|
0.293
|
97.6
|
0.005
|
1.70
|
0.298
|
99.3
|
0.006
|
2.01
|
- *Mean of four experiments carried out on the same day
- **Mean of four experiments carried out on different four day