Overview
This source page is a mechanical bulk-ingest record for a PDF in the research-pulls corpus. It preserves source-level identity, routeable product/analyte scope, and exact extracted numeric lines for later human or fresh-context audit. It does not derive HMTc thresholds, percentiles, or brand-by-brand comparisons.
Key numbers
The worker extracted the full PDF text with layout preservation twice and compared extraction hashes before commit. The following lines are copied from numeric/table-bearing regions of the PDF and retain the source units and wording where legible:
- Table 1 lists the currently available, validated in chemico and in vitro test methods.21-29
- complex analytical laboratory analyses. Table 2 provides a list of allergen stability
-
- Nilsson U, Magnusson K, Karlberg O, et al. Are contact allergens stable in patch test preparations?
- Thiuram mix/PET: tetramethylthiuram monosulfide HPLC-UV/VIS Thiuram mixes were unstable with individual thiurams reacting with Bergendorff & Hansson,66
- Balsam of Peru/PET TLC or colorimetry All found to be stable for 6 y in original sealed packaging, at room Lembo et al,67 1993
- Methyldibromo glutaronitrile/PET HPLC-UV Stable for 1 y of storage at 6–8°C Gruvberger et al,68 2004
- Cinnamal HPLC-diode array detector and All except 2-HEMA unstable if stored in patch test chambers at both Mose et al,44 2012
- Eugenol GC-MS 4°C and 22°C; all were more stable stored in a Vander Bend transport
- Tixocortol, pivalate, budesonide and hydrocortisone-17- HPLC-UV All stable over a 50-week period except 1% Hc-17-B in ethanol Isaksson et al,69 2000
- MMA HPLC-MS 2-HPA and MMA predominately had unacceptable levels (<20% of the Goon et al,46 2011
- D-Limonene oxidation products/PET HPLC-UV and GC-MS Stable for 6 weeks when stored at 6–8°C Unstable if PET is stabilized Nilsson et al,70 1999
- 2,4-Toluene diisocyanate (TDI)/PET HPLC-MS TDI, HDI and IPDI were all found to be stable and at the stated Frick-Engfeldt et al,72
Methods (brief)
- 9Spot tests are simple qualitative or semiquantitative tests that use small amounts of sample,
- spectrometry (UHPLC-MS-MS) can be used to obtain the chemical’s mass, isotopic
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- Mowitz M, Zimerson E, Svedman C, et al. Stability of fragrance patch test preparations applied in
- performance liquid chromatographic-mass spectrometry analysis. Dermatitis 2018;29(6):332–8.
- chromatographic tandem mass spectrometry. Dermatitis 2020. in press.
-
- Mowitz M, Zimerson E, Svedman C, et al. Patch testing with serial dilutions and thin-layer
- sample separating the 2 chambers of a diffusion cell; the receptor fluid is sampled
- Thiuram mix/PET: tetramethylthiuram monosulfide HPLC-UV/VIS Thiuram mixes were unstable with individual thiurams reacting with Bergendorff & Hansson,66
- Colophony/PET levels in new and stored samples
- Methyldibromo glutaronitrile/PET HPLC-UV Stable for 1 y of storage at 6–8°C Gruvberger et al,68 2004
- Cinnamal HPLC-diode array detector and All except 2-HEMA unstable if stored in patch test chambers at both Mose et al,44 2012
- Tixocortol, pivalate, budesonide and hydrocortisone-17- HPLC-UV All stable over a 50-week period except 1% Hc-17-B in ethanol Isaksson et al,69 2000
- MMA HPLC-MS 2-HPA and MMA predominately had unacceptable levels (<20% of the Goon et al,46 2011
- D-Limonene oxidation products/PET HPLC-UV and GC-MS Stable for 6 weeks when stored at 6–8°C Unstable if PET is stabilized Nilsson et al,70 1999
- Fragrance mix 1/PET components – amyl cinnamal, HPLC-diode array detector or gel At 23°C rapid time-dependent losses were observed for all fragrances in Mowitz et al,42 2012
- Triglycidyl isocyanurate (TI) powder TI/PET HPLC-UV detector Degradation of TI observed in both powder and TI/PET in samples Erikstam et al,71 2015
- 2,4-Toluene diisocyanate (TDI)/PET HPLC-MS TDI, HDI and IPDI were all found to be stable and at the stated Frick-Engfeldt et al,72
- diphenylmethane-4,4′-diisocyanate(MDI)/PET HPLC-MS MDI concentrations were lower than the labeled amount in commercial Frick et al,73 2005
Implications
This page makes the source discoverable for category-level evidence routing. Values remain source-native and should be used only with the stated matrix, species, basis, geography, and censoring context from the paper. The page does not convert total mercury to methylmercury or use total arsenic as inorganic arsenic.
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Verification notes
- Identity check: DOI, raw handle, candidate cite-key, and SHA-256 were compared against existing
wiki/sources/pages before creation. - Full-PDF read:
pdftotext -layoutwas run on the full PDF twice; extracted text hashes matched before the page was written. - Numeric verification: numeric/table-bearing lines were selected mechanically from the verified extraction and preserved without unit conversion or rounding.
- Brand firewall: the worker skips PDFs when extracted numeric lines appear brand/manufacturer-sensitive; this page contains category-level or species-level evidence only.
- HMTc firewall: no threshold, percentile, pass/fail, clean/dirty, or certification math is stated.
Update history
The five most recent substantive edits to this page, classified major (evidence or structure moved), correction (a published value or statement was wrong and has been fixed), or minor (narrative rewritten without changing the underlying evidence). Each description is derived from what the edit did to this page; the linked commit is the authoritative record, routine regeneration passes are excluded, and the full version history lives in git. When DOI minting comes online (see schema docs), each entry below will also link to a version-pinned DataCite DOI.