G7200-90210 (Rev. A) MassHunter Workstation Quick Start Guide 35
Semi-Quantitative Analysis
Semi- quantitative analysis allows you to quickly scan and obtain information
about the concentrations of all elements that are present in an unknown
sample. It is useful when you want to obtain concentration information for a
large number of elements (>70) without external calibration, such as screening
prior to quantitative analysis on target elements. Typically, semi- quantitative
analysis is accurate to +/- 30% or better on completely unknown samples.
Prepare for SemiQuant Analysis
Prepare the following samples and solutions for analysis:
• Samples (dilute with nitric acid to approx. 1%)
• Tuning solution (Li, Co, Y, Ce, Tl, 1ppb each, with approx. 1% nitric acid)
• Cleaning solution (1 to 5% nitric acid)
Create a SemiQuant acquisition method
1 Select Edit Entire Method from the Methods menu. This initiates a series
of dialog boxes, so you can set the parameters for your acquisition method.
See the online help for a full description of the items on these dialog boxes.
2 On the Edit Method dialog box, mark the following options, then click OK.
3 On the Method Information dialog box, set the following parameters, then
click OK:
a Enter a comment
b Be sure that the Data Analysis check box is checked; this is required to
run the data analysis automatically after data acquisition.
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