Analytical Instrumentation

  • Analysis of lead in gasoline by ASTM D5059 (Bi IS Method)
    NEX QC+ for Analysis of Lead in Gasoline

Analysis of lead in gasoline by ASTM D5059 (Bi IS Method)

Feb 17 2021 Read 619 Times

For years, tetraethyl lead (TEL), an anti-knock agent, has been added to gasoline and aviation fuels. Lead is a toxic metal that interferes with anti-pollution devices and contributes to lead poisoning. In the 1970s, regions around the world began phasing out lead in motor gasoline. However, even in the age of unleaded auto gasoline, lead levels still need monitoring. Off-road vehicles, farm equipment, aircraft, and some marine engines still use leaded gas.

One of the main international standard test methods for measuring lead in gasoline is ASTM D5059 using X-ray spectroscopy. As efforts continue to lower and remove lead from gasoline fuels, the Rigaku NEX QC+ spectrometer easily meets ASTM D5059 Part A (high Pb for AvGas, aviation gasoline) and Part C (ultra-low lead for MoGas, motor gasoline) using the Bi internal standard method to measure lead.

Elemental analysis by Energy dispersive X-ray fluorescence (EDXRF) provides a quick and reliable solution for analyzing lead (Pb) in gasoline. EDXRF is a well-established technique, and with multi-element analysis capabilities, the NEX QC+ EDXRF analyser shows versatility for many applications in the petroleum and fuel industries.

The NEX QC+ benchtop spectrometer combines superior performance capabilities with affordability and delivers quick compliance for ASTM D5059 and other ASTM and international standard test methods. Designed for rapid qualitative and quantitative elemental analysis of sodium through uranium, this instrument is ideal for routine screening needs. The 50 kV X-ray tube and solid state detector offers exceptional spectral resolution and throughput. The high voltage capability and multiple automated tube filters provide enhanced sensitivity and low limits of detection. Additionally, the intuitive touchscreen interface and built-in printer make this instrument easy to use and convenient.


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