LimsPulse
Petroleum testing

Sulphur Analyser (XRF / UV Fluorescence)

Measures total sulphur in fuels and oils, either by X-ray fluorescence (fast, non-destructive, from tens of mg/kg to several per cent) or by combustion and ultraviolet fluorescence (very low levels, down to about 1 mg/kg).

  • Petroleum refining
  • Fuel terminals
  • Marine fuel testing
  • Regulatory and customs labs
  • Biofuel production
  • Independent testing laboratories
Photo of a Sulphur Analyser (XRF / UV Fluorescence)
Photo: Elemental analysis, CC BY-SA 4.0 (cropped), via Wikimedia Commons
CALIBRATION

Sulphur analyser calibration procedures

Calibration with sulphur standards

Builds a calibration line from standards of known sulphur content in a matching matrix, checks its linearity, and confirms it with an independent check standard.

Open procedure
QUALIFICATION

Instrument qualification (DQ · IQ · OQ · PQ)

  1. 01

    DQ — Design qualification

    Defines the required range and detection limit (for example 10 mg/kg diesel versus 3% fuel oil), technique (EDXRF, WDXRF or UVF), standards to meet (ASTM D4294, D5453, ISO 20846, ISO 20884), autosampler, radiation safety and data integrity needs.

  2. 02

    IQ — Installation qualification

    Confirms installation, gas and power connections, radiation registration (XRF), leak tests, software version and documentation.

  3. 03

    OQ — Operational qualification

    Checks furnace temperature and gas flows (UVF) or X-ray tube stability and detector resolution (XRF), calibration linearity, detection limit and repeatability.

  4. 04

    PQ — Performance qualification

    Measures certified reference materials near the specification limit and across the range, and tracks a QC check sample on a control chart in routine use.

In LimsPulse · Calibration Management

Keep every Sulphur analyser in control: usage logs, calibration and maintenance schedules, and automatic blocking of overdue instruments.

See how