Reduced Sample Volumes for TS Analysis According to ASTM D5453 and SH/T 0689

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The TSHR Total Sulfur Analyzer, TS 7000, is ideal for the determination of total sulfur particular in an extensive range of liquid hydrocarbon samples such as automotive fuels and high-grade chemicals in compliance with ASTM D5453 and SHT 0689 methods.

The TSHR TS 7000 model Total Sulfur combustion analyzer fitted with the HR 7000 autosampler series, is able to accommodate syringes of 25ul, 50 ul and 100 ul in order customize certain application needs while achieve high precision data.

This note described the performance data of the TS 7000 analyzer configuration when the HR 7000 liquids autosampler is fitted with a 25 ul syringe for direct injection of small sample volumes as per ASTM D5453 methodology. The injection port design is maintained at 500°C to ensure a proper introduction of the sample. Once the liquid sample is evaporated it enters the oxygen rich combustion zone to ensure a oxidative conversion of the sulfur components into SO2 (sulfur dioxide) at 1000oC. Water and interferences (if any) are removed by the conditioning stage, which involves a permeable membrane dryer tube.

The dried gas with SO2 is led to the UV-F detector for the excitation of SO2 (SO2*) and a photomultiplier tube (PMT) which detects the light emitted by SO2* returning to its ground state. The automatic gain control (AGC) ensures a constant energy level of the UV lamp for excellent long-term stability and to reduce the need for frequent lamp calibration.

Our Impact

TSHR has been helping labs achieve their elemental analysis goals with dedicated solutions. Our vision is to develop innovative reliable combustion analyzers that enable customers to make their work productive and more easier.

To help labs excel we offer Application Notes across the Combustion Analyzer product line. They are a resource that explains the technology, performance, and abilities of our products as used against certain methodologies and or applications.

Whether your needs center around an ASTM Standard or EN/ISO methods, or a sample matrix-based outcome TSHR has you covered. If you don’t see the technical direction you need, simply contact us. We also offer sample analysis in our onsite Applications Lab.

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