Page 9 - Shimadzu MXF-2400

7 Enhanced Sensitivity for Superlight 9 Analytical Information can be set for
Elements
Each Individual Sample Form and Each
Individual Element
The layered structure analyzer (LSA), which uses curved crystals
for convergence, provides almost ten times higher sensitivity for Analytical conditions such as optimal X-ray output and PHA
X-rays than conventional detectors. LSA dispersing element Monochromator for LSA (pulse height analyzer) range can be freely set for each
Unlike the conventional dispersing crystals, the LSA has individual sample form and element.
synthetic multilayer structures. Also, an automatic sensitivity correction function (counting loss
The spacer is made of the material and has the thickness that 12 TAP. (Mg, Na, F) correction) can be used.
gives the best lattice constant to sense X-ray intensities at the 11 LSA dispersing element
highest sensitivity for such elements as Be, B, C, N, O, F, Na, and 10
Mg. 9
X-ray intensity ratio 8 7 6

4 5
3
2
1
Mg Na F O N C B Be
Element
X-ray Intensity Comparison between LSA Dispersing Element
and TAP Crystal Total Reflection

8 Wide Dynamic Range ( x 10 CPS)
4
X-ray tube voltage: 40 kV
The Shimadzu’s original pulse counting circuit and the counting
300 X-ray: CuKa
error correcting circuit combine to provide a wide dynamic Simultaneous Determination of up to 36
range: one calibration curve can cover the concentration range 10 Major and Impurity Elements
more than 3,000,000 cps, from 0% to 100%. High accuracy is
The 36 fixed monochromators detect impurity elements as well
ensured even in high concentration region where the X-ray
X-ray intensity few ppm concentration level.
intensity is very high. 200 as major elements with high reliability. The detection limit is a
The scanning monochromator permits automatic qualitative
determination and may also be used for quantitative
determination.
100
There is a strong demand for the method to analyze not only
major elements but also impurity elements, in order to enhance
the quality of the final products. The technique of X-ray
fluorescence spectrometry has detection limits of
0 10 20 30 40 50 60 a few ppm concentration level and is applicable to various types
Linear Calibration Curve more than 3,000,000 cps X-ray tube current (mA) of samples.

MXF-2400
Multi-Channel X-ray Fluorescence Spectrometer