UOP 981-10 is a laboratory method for measuring trace nitrogen in liquid hydrocarbons by oxidative combustion with chemiluminescence detection. It is relevant when buyers need a controlled way to assess nitrogen at very low levels in petroleum and related hydrocarbon samples, where small contamination or compositional differences can affect product quality or downstream processing. For refinery laboratories, fuel testing teams, and analytical chemists, this method supports technical review, sample comparison, and quality verification with a focus on trace-level nitrogen determination.

Overview of UOP 981-10

UOP 981-10 is a UOP test method centered on the analytical determination of trace nitrogen in liquid hydrocarbon materials. Its title indicates an instrumental laboratory approach that combines oxidative combustion with chemiluminescence detection, making it suited to trace analysis rather than broad routine characterization. In practice, this type of method is often selected when a laboratory needs a reliable measurement framework for petroleum-derived liquids or similar hydrocarbon streams. It supports consistent interpretation of nitrogen content for technical documentation and product evaluation.

Laboratory use of UOP 981-10

UOP 981-10 is commonly relevant in refinery and petrochemical laboratories where trace nitrogen information may be needed for sample review, quality control, or comparison of liquid hydrocarbon products. Laboratory analysts and QA/QC teams may use it when evaluating feedstocks, intermediate streams, or finished materials that require careful chemical assessment. It also fits technical review work for petroleum specialists and product quality staff who need a standard method reference for nitrogen measurement in liquid hydrocarbons. The method helps keep analytical work aligned with established UOP practice.

Why UOP 981-10 matters in day-to-day work

UOP 981-10 matters because trace nitrogen can be a meaningful quality indicator in hydrocarbon analysis, especially when teams need dependable laboratory data for operational decisions. A clear test method helps reduce ambiguity in sample comparison, supports documentation quality, and improves consistency across testing programs. For day-to-day work, this can be important in refinery QA/QC, analytical reporting, and technical review of liquid hydrocarbon materials. Using a recognized method also helps teams communicate results more clearly across laboratories and functions.

• Trace nitrogen measurement in liquid hydrocarbons
• Oxidative combustion with chemiluminescence detection
• Refinery laboratory and QA/QC relevance
• Petroleum and petrochemical sample review
• Analytical support for product comparison and documentation
• UOP test method for technical laboratory use