Residual Solvents Solutions

Residual Solvents Solutions

Rxi-624Sil MS Columns (fused silica)

midpolarity Crossbond phase

  • Low-bleed, high-thermal stability columnmaximum temperatures up to 300320 °C.
  • Inertexcellent peak shape for a wide range of compounds.
  • SelectiveG43 phase highly selective for volatile organics and residual solvents, great choice for USP<467>.
  • Manufactured for column-to-column reproducibilitywell suited for validated methods.

USP Residual Solvent Standards

  • USP equivalent standards for the revised USP <467> general chapter—compliance without the cost—compare prices today.
  • The only complete source for USP <467>.

Headspace Vials & Caps

  • 10 and 20mL screw-thread vials available.
  • 18mm magnetic screw-thread caps.
  • Crimp vials and seals also available.

Technical Articles


Revised USP 467 Residual Solvent Method - Satisfy New Method Requirements with Restek Columns and Standards

The United States Pharmacopeia recently revised the general chapter on residual solvent analysis, USP <467>, to mirror the International Conference on Harmonization (ICH) guidelines for the identification, control and quantification of residual solvents. This revision, effective July 1, 2007, replaces previous methods that were not consistent with the ICH guidelines. Here we provide an overview, chromatograms, and technical tips for successfully running the new procedure.


Organic Volatile Impurities: Retention Time Index

To make column selection for residual solvents easy, Restek has benchmarked the ICH Class 1, 2 and 3 residual solvents on our most popular OVI columns.


8-Minute GC Analysis of Residual Solvents - Using an Rtx-624 (G43) / Rtx-WAX (G16) Column Pair

Single-injection, dual-column detection/confirmation assay is feasible for regulated solvents in pharmaceutical products, but no temperature program provides sufficient resolution on both columns. Using a Restek G43/G16 column pair and independent temperature programs in a Gerstel MACH column heating system, we analyzed and confirmed 23 Class 2 solvents in 8 minutes.

PDF Document

A Technical Guide for Static Headspace Analysis Using GC

Static headspace analysis will save you time and money when assaying a variety of sample matrices—and often is easier than alternative sampling approaches. This 20-page guide discusses basic principles, instrumentation, applications, and troubleshooting. Restek capillary GC columns and an extensive selection of accessories will simplify getting started.

PDF Document

Residual Solvent Analysis: Implementing USP <467>

This 12-page reference includes a of headspace fundamentals, the revised USP <467> method (July, 2008), chromatography for Procedures A, B, and C, and technical tips for optimization. Guidance on fast, effect method development is given.

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