Meaning
Analytical technique used in mass spectrometry to resolve overlapping signals into discrete chemical identities. Accurate mass deconvolution allows for the identification of additives or contaminants in polymer samples by comparing high resolution data against known molecular weights. It distinguishes between substances with nearly identical nominal masses.
Resolution Power
Mathematical processing identifies the exact isotopic pattern of a polymer additive within a complex chemical mixture. While standard detectors group nearby peaks, accurate mass deconvolution separates those signals to reveal specific antioxidant or UV stabiliser chemistries. This separation prevents the misidentification of trace substances during failure analysis and allows for the precise quantification of every component in the blend.
Contaminant Identification
Raw material batches often undergo this testing to verify the absence of prohibited substances or unreacted monomers. Using accurate mass deconvolution, a lab technician can detect small molecules that migrate from the catalyst residue into the final resin. Precise mass measurement is the standard for qualifying food grade resins where purity levels are strictly controlled.
Extraction Efficiency
Solvents remove low molecular weight species from a moulded part for subsequent measurement. Because the resulting mixture contains dozens of degraded chain fragments, accurate mass deconvolution provides the only method to isolate the signal of the target migrant. This isolation ensures the reported concentration reflects the actual risk to the consumer rather than a combined signal of multiple safe substances.
