UOP 991-13 is a laboratory method for measuring trace chloride, fluoride, and bromide in liquid organics by combustion ion chromatography (CIC). It is relevant when teams need a controlled way to evaluate low-level halide content in organic samples that may affect product quality, analytical cleanliness, or downstream processing decisions. For refinery and petrochemical laboratories, this type of method supports more confident sample review and quality assessment. As a UOP 991-13 standard, it gives technical users a focused reference for trace ionic analysis in liquid organic materials.

UOP 991-13 analytical scope

This UOP 991-13 method is an instrumental ion analysis procedure centered on the determination of trace chloride, fluoride, and bromide in liquid organic matrices. The title indicates a combustion step followed by ion chromatography, which places the method in the category of targeted laboratory analysis for ionic species released from organic samples. In practice, it is used to assess whether halide-related impurities are present at low levels and to support consistent analytical evaluation. The method is most relevant to users who need a reliable framework for trace-level halogen ion measurement.

Where is UOP 991-13 used?

UOP 991-13 is commonly used in refinery laboratories, petrochemical testing facilities, and other technical environments that review liquid organic samples for trace ionic contamination. It may be part of workflows handled by laboratory analysts, QA/QC personnel, and analytical chemists who support product qualification or sample comparison. The method is also useful for technical reviewers and process teams that rely on laboratory data to judge material suitability or investigate unusual composition results. In these settings, it helps connect sample analysis with practical quality decisions.

Why labs rely on UOP 991-13

Labs rely on UOP 991-13 because trace halide data can be important for product evaluation, documentation quality, and consistent comparison between samples. A method focused on chloride, fluoride, and bromide gives teams a clear analytical basis for checking low-level ionic content in liquid organics. That can support day-to-day QA/QC work, help reduce uncertainty in technical review, and improve confidence in reported results. For organizations managing petroleum and chemical materials, the method adds structure to trace analysis and supports more consistent laboratory decision-making.

• Trace chloride, fluoride, and bromide measurement
• Combustion ion chromatography workflow
• Liquid organic sample analysis
• Refinery and petrochemical lab use
• QA/QC and technical review support
• Analytical consistency for product evaluation