BQS OBSP Determination:
2-METHYLANTHRACENE
METHOD: 5506 , TESTIDCODE: 64105GCM13
Open Data Set

Analysis Date = 03/01/17 SpikeMix = Abs 051316sed6H3: 0 µl & ERA 04121610: 0 µl Pct Recovery = 22% Analysis Date = 09/27/16 SpikeMix = Abs 051316sed6H3: 0 µl & Abs 051316sed6H2: 0 µl Pct Recovery = 31% Analysis Date = 09/28/16 SpikeMix = ERA 04121611: 0 µl & ERA 04121612: 0 µl Pct Recovery = 39% Y = 1.5 Y = 0.5 Y = 1
The SGPlot Procedure

Plotted Points Statistics
2-METHYLANTHRACENE

Spike Level N Mean Std-Dev. Median F_Pseudo
>= Reporting Level 3 31% 8% 31% 12%
Total 3 31% 8% 31% 12%

Sample Statistics
2-METHYLANTHRACENE

Characteristic N % % Basis
Plotted 3 33% Spiked
Estimated Values 0 0% Spiked
Deleted Values 3 16% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 12 .  
False Negatives 6 67% 6 out of 9
Not Spiked 7 .  
False Positives 0 0% 0 out of 7