Resolux Analytical uses fit-for-purpose analytical methods selected according to the analyte, matrix, required sensitivity, and intended use of the results. Methods may be based on established USP, FDA, EPA, AOAC, ASTM, Agilent application methods, peer-reviewed literature, validated customer methods, or internally developed and verified procedures as appropriate.

Analytical techniques include:

• HPLC-DAD for chromatographic purity, quantitative assay, retention-time comparison, UV spectral evaluation, ingredient analysis, and degradation/stability studies
• Triple-quadrupole LC-MS/MS for targeted molecular confirmation and quantitative analysis
• ICP-MS for trace elemental analysis, heavy metals, elemental impurities, minerals, and contamination investigations
• GC-MS with headspace sampling for residual solvents, VOCs, volatile compounds, and targeted chemical analysis
• Microbiological methods for applicable aerobic microbial counts, yeast and mold counts, specified organisms, and product quality investigations
• Endotoxin testing using appropriate compendial or validated methodologies
• Certified reference materials, calibration standards, internal standards, blanks, controls, spikes, and independent QC materials are used where appropriate to the method

Methods and reporting limits are reviewed for suitability before accepting work. Custom method development and method verification are available for analytes or matrices not already covered by an established procedure.