Question

List and explain 4 things to keep in mind/sources of error when collecting samples for potassium:

Answer 1

Contamination, Sampling method, Instrument calibration, and Human error are sources of error in collecting samples for potassium.

Step-by-step explanation:

When collecting samples for potassium, there are four things to keep in mind as potential sources of error:

1. Contamination: Any contact of the sample with air or water can cause reaction or contamination. It is important to store the samples properly to prevent contact.
2. Sampling method: The method used to collect the sample can introduce errors. It is important to use a consistent and accurate sampling technique.
3. Instrument calibration: If the instruments used for analysis are not properly calibrated, it can lead to inaccurate results. Regular calibration and maintenance are necessary.
4. Human error: Mistakes made during the sample collection process, such as incorrect labeling or improper handling, can introduce errors. Careful attention to detail is important to minimize human error.