OBSP Determination:
4-NONYLPHENOL MONOETHOXYLATE, TOTAL (NPEO1)
METHOD: 4433 , TESTIDCODE: 61704GCM99

Analysis Date = 02/24/16 SpikeMix = Spex Organics EN150529012: 80 µl & Crescent 04EE006: 80 µl Pct Recovery = 84% Analysis Date = 06/13/16 SpikeMix = ChemService 3982800: 40 µl & Crescent 04EE006: 40 µl Pct Recovery = 92% Analysis Date = 04/16/16 SpikeMix = Crescent 04EE006: 20 µl & ERA 0406-15-02: 20 µl Pct Recovery = 77% Y = 1.5 Y = 0.5 Y = 1
The SGPlot Procedure

Plotted Points Statistics
4-NONYLPHENOL MONOETHOXYLATE, TOTAL (NPEO1)

Spike Level N Mean Std-Dev. Median F_Pseudo
>= Reporting Level 3 84% 8% 84% 11%
Total 3 84% 8% 84% 11%

Sample Statistics
4-NONYLPHENOL MONOETHOXYLATE, TOTAL (NPEO1)

Characteristic N % % Basis
Plotted 3 100% Spiked
Estimated Values 3 100% Spiked
Deleted Values 2 4% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 3 .  
False Negatives 0 0% 0 out of 3
Not Spiked 52 .  
False Positives 12 24% 12 out of 50