Device to seal ends of gas chromatography columns with a filter disk

Abstract

level. The maximum error between the observed signal intensity and the best fit line corresponds to an error in the Cu2+ concentration of ±0.2 ppb.Also of interest is the fact that the Y axis intercept at X = 0 indicates that the copper concentration in the unspiked sea water sample was 2.6 ppb. This value is in good agreement with the average value of 3.0 ppb reported