From: A method for the determination of ZnDDP in lubricant oils by applying solid-phase extraction with mixed resin
ZnDDP (µg/ml)
LOD (µg/ml)
LOQ (µg/ml)
Precision (% RSD)
R2
1
0.0881
0.2669
2.33
0.9991
50
4.56
100
3.03