Back to ASDL
-
To download the media (or a link to the media) in these blog posts simply right click on the illustrations, animations, photos, or video and save to your computer.
Unless otherwise identified, all images are available under the following Creative Commons License.
.
Tag Archives: standard addition
Standard Addition by Serial Spikes
One approach for preparing standard additions is to spike equal volumes of the sample with different volumes of a standard and diluting each to the same final volume. An alternative form of standard additions is illustrated here. In this case … Continue reading
Matrix Effects
Sometimes the solution matrix in which the analyte resides affects the relationship between the signal and the analyte’s concentration, as shown below. We call this a matrix effect. When matrix effects are present, we introduce a determinate source of error … Continue reading
Posted in Illustration
Tagged calibration, determinate error, matrix effect, standard addition
Leave a comment
Two Ways to Prepare a Standard Addition
The illustration below shows one method for making a standard addition. The volumetric flask on the left contains a portion of the sample, Vo, and the volumetric flask on the right contains an identical portion of the sample and a … Continue reading
Standard Addition Calibration Curve
Shown at the top is a set of six standard additions for the determination of Mn2+. The flask on the left is a 25.00-mL sample diluted to 50.00 mL. The remaining flasks contain 25.00 mL of sample and, from left … Continue reading