Pulp, paper and paperboard - Determination of manganese content

Manganese content in pulp, paper and board can be determined using atomic absorption spectrometry as follows:

1. Take a certain amount of sample and dissolve it in an appropriate amount of dilute acid to make it into a solution.

2. Using an atomic absorption spectrometer, determine the manganese content according to the standard curve. Atomic absorption spectrometers can choose from various models such as flame type, graphite furnace type or inductive coupling.

3. During the analysis, care should be taken to eliminate interference factors, such as separating iron and manganese in the sample, so as to avoid the interference of iron on manganese analysis. It is also necessary to perform appropriate dilution according to the manganese content in the sample to ensure the accuracy of the analysis.

NBCHAO reminds you: When determining manganese content, appropriate measurement conditions should be selected, and instrument calibration and quality control should be carried out to ensure the accuracy and reliability of the analysis results.