UOP 1021-17 is a laboratory determination method for measuring trace methyl and ethyl mercaptan in polymer grade ethylene and propylene by gas chromatography mass spectrometry. For buyers evaluating analytical standards, this method is relevant when very low-level sulfur contamination needs to be checked in high-purity olefin streams. It supports practical product quality review, sample comparison, and documentation in environments where trace mercaptans can affect downstream processing, product handling, or specification compliance. Laboratories looking for a repeatable reference method for GC-MS-based trace analysis will find this UOP method especially useful.

UOP 1021-17 analytical scope

The analytical scope of UOP 1021-17 centers on the determination of two specific trace mercaptans, methyl mercaptan and ethyl mercaptan, in polymer grade ethylene and propylene. As a determination method, it is designed to support measurement-focused laboratory work rather than broad compositional screening. The title indicates a GC-MS approach, which makes the method suitable for targeted trace analysis where selectivity and consistency matter. This is a practical fit for laboratories that need a standardized way to evaluate sulfur-related impurities in high-purity petrochemical feedstocks or finished process streams.

Where is UOP 1021-17 used?

UOP 1021-17 is commonly used in petrochemical and refinery laboratory settings where polymer grade ethylene and propylene are tested for trace sulfur compounds. It is most relevant to analytical chemists, laboratory analysts, QA/QC teams, and technical reviewers who support product release or process monitoring. The method may also be used in technical documentation and product evaluation workflows when trace mercaptans must be checked against internal quality targets or customer requirements. In practice, it helps organizations maintain a consistent analytical reference for high-purity olefin stream assessment.

Why labs rely on UOP 1021-17

Labs rely on UOP 1021-17 because trace mercaptan measurement in polymer grade olefins requires a clear, repeatable analytical approach. Consistent results help teams compare samples, track product quality, and support internal review with less ambiguity. For routine laboratory work, a standardized UOP method can improve confidence in data shared across quality, operations, and technical groups. It also supports better documentation when trace sulfur impurities are part of acceptance, troubleshooting, or supplier comparison activities. For organizations working with sensitive petrochemical streams, analytical consistency is a practical advantage.

• Trace methyl mercaptan measurement
• Trace ethyl mercaptan measurement
• Polymer grade ethylene and propylene
• GC-MS laboratory analysis
• QA/QC and product review support
• Standardized trace impurity determination