BQS ORGANIC BLIND SAMPLES
CAFFEINE,
Schedule: 2060 Testid: 50305LCM29
Measured in MICROGRAMS PER LITER
02/09/07 TO 12/21/12
Open Data Set

Plot of pctrecov by newdate

Statistics for the Plotted Points
CAFFEINE

Spike Level N Mean Std-Dev. Median F_Pseudo
< Reporting Level 8 94% 25% 92% 21%
>= Reporting Level 73 109% 30% 110% 28%
Total 81 108% 29% 108% 29%

Miscellaneous Statistics for the Samples
CAFFEINE

Characteristic N % % Basis
Plotted 81 100% Spiked
Estimated Values 14 17% Spiked
Deleted Values 1 1% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 82 .  
False Negatives 0 0% 0 out of 81
Not Spiked 114 .  
False Positives 1 1% 1 out of 114