ISO 20884 ASTM D2622 WDXRF Sulfur Analyzer Micro Sulfur Tester X Ray Fluorescence XRF Sulfur Content WDXRF Spectrometer

ISO 20884 ASTM D2622 WDXRF Sulfur analyzer Micro sulfur tester X Ray Fluorescence XRF Sulfur Content WDXRF spectrometer 

Meet the requirements of national V and National VI for ultra-low S detection of automotive gasoline and diesel

Low detection limit (300s) :0.33ppm

Adopt monochromatic excited wavelength dispersive X-ray fluorescence (MWDXRF) analysis technique

High diffraction efficiency logarithmic spiral rotating hyperboloid (LSDCC) intraocular crystals

Micro focal spot thin beryllium window X-ray tube with reasonable combination of kV, mA and target

Meet the standard:

GB/T 11140

ISO 20884

SH/T 0842

ASTM D2622

ASTM D7039

ASTM D7220

ISO 20884 ASTM D2622 WDXRF Sulfur analyzer Micro sulfur tester X Ray Fluorescence XRF Sulfur Content WDXRF spectrometer 

Overview

LR-116 monochromatic excited wavelength dispersive X-ray fluorescence trace sulfur meter, referred to as LR-116 MWDXRF trace sulfur meter, is the company's collection of decades of X-ray fluorescence spectrometer research experience, The company's first point-to-point monochromatic excited XRF spectrometer was developed on the basis of the company's original DM series X-ray fluorescence sulfur analyzer, X-ray fluorescence multi-element analyzer, wavelength dispersive X-ray fluorescence multichannel spectrometer, etc. It uses the following technologies and devices to make the GA-116 with 50W optical tube with excellent reproducibility and stability, low detection limits, and has actually taken the detection level to a new level.

Point-to-point focusing monochromatic excited wavelength dispersive X-ray fluorescence (MWDXRF) analysis technique

The Limit Of Detection (LOD) of X-ray fluorescence spectrometer refers to the corresponding amount of 3 times the standard deviation of the instrument background signal generated by the matrix blank, namely:

 (1)

Rb is the background (background) counting intensity, N is the counting intensity of low-concentration samples with known concentration of C, and T is the measurement time. From formula (1), it can be seen that the detection limit is inversely proportional to the sensitivity (N-Rb) /C and proportional to the square root of background Rb. In order to reduce the detection limit when the measurement time is fixed, it is necessary to improve the sensitivity and/or reduce the background.

Precision

S-repeatability tests were performed on three gasoline samples, each filled with seven different sample cups:

Table 2. Repeatability test data for S gasoline sample S analysis

Table 2 These results show that excellent repeatability of S can be achieved with the LR-116 sulfur detector at low concentration levels.

ISO 20884 ASTM D2622 WDXRF Sulfur analyzer Micro sulfur tester X Ray Fluorescence XRF Sulfur Content WDXRF spectrometer 

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