Mini-Z Sulfur - WDXRF Sulfur Analyzer

The Mini-Z Sulfur WDXRF sulfur analyzer, specifically designed for rapid batch testing of low and ultra-low sulfur diesel (ULSD) and gasoline fuel samples, allows easy use by non-technical personnel.

The robust design is hardened for industrial use with minimal maintenance, whether at petroleum pipeline terminals, refineries, or testing laboratories. The Mini-Z Sulfur analyzer, with a range of 0.26ppm up to 4wt%, complies with the most common international standards for low sulfur measurements, including ASTM D-2622, ISO 20884 and JIS K 2541-7.

Key Features

The key features of the Mini-Z Sulfur are:

  • Direct measurement without sample preparation
  • Established method: ASTM D-2622
  • Very low limit-of-detection (LLD): 0.26ppm
  • Wide analysis range (LOQ): 0.78ppm to 4 wt%
  • Standard deviation of 0.18ppm at 10 ppm
  • Fast measurement time: 300s
  • High throughput: 6-position autosampler
  • No combustible gases required
  • Built-in computer, keypad, and display
  • Extremely low maintenance


The main applications of Mini-Z Sulfur are:

  • 0-Day repeatability data from the optimized Mini-Z Sulfur Analyzer on a 1ppm ultra-low sulfur Conostan diesel standard
  • Analysis of Low Concentration Sulfur in Automotive Fuels by Mini-Z Sulfur Analyzer According to ASTM D2622-10
  • Precision data from the Rigaku Mini-Z Sulfur Analyzer for ultra-low sulfur levels in fuels

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