Table 3 Surface composition of swabbed heritage PVC objects from SAAM based on NPDPI-MS and description of observed surface exudates

1971.82.5A, Sticky exudate, dust, dirt

1971

391.284

C₂₄H₃₈O₄

DEHP/DOTP

329.305

C₂₀H₄₀O₃

17-hydroxyicosanoic acid

329.30→ 311.29, 257.25, 257.25→ 201.19, 103.08 (MS³)

311.294

C₂₀H₃₈O₂

eicosenoic acid

257.25, 239.24

water loss from C₂₀H₄₀O₃

529.408

C₃₀H₅₆O₇

529.41→ 511.40 ([C₃₀H₅₅O₆]⁺), 311.29, 273.17

formula associated with plasticizers

1971.82.6, Sticky exudate, dust, dirt

1971

391.284

C₂₄H₃₈O₄

DEHP/DOTP

329.305

C₂₀H₄₀O₃

17-hydroxyicosanoic acid

311.294

C₂₀H₃₈O₂

eicosenoic acid

water loss from C₂₀H₄₀O₃

529.408

C₃₀H₅₆O₇

529.41→ 511.40 ([C₃₀H₅₅O₆]⁺), 311.29, 273.17

formula associated with plasticizers

1976.48.8, Yellowing, discolouration (black)

1966-1971

391.284

C₂₄H₃₈O₄

DEHP/DOTP

313.143

C₁₉H₂₀O₄

benzyl butly phthalate

313.14→ 149.02 (loss of C₁₁H₁₅O)

405.300

C₂₅H₄₀O₄

octyl nonyl phthalate

405.30→ 279.16, 149.02

plasticizer

377.326

C₂₁H₄₄O₅

377.33→ 195.12 (loss of C₁₃H₂₆)

surfactant⁴³

377.270

C₂₃H₃₆O₄

octyl heptyl phthalate

plasticizer

521.493

C₃₄H₆₄O₃

521.49→ 279.23 (loss of C₁₆H₃₄O)

447.347

C₂₈H₄₆O₄

DIDP

447.35→ 307.19 (loss of C₁₀H₂₂)

trace amounts

1985.82.2, Part of surface with NVE

1985

391.284

C₂₄H₃₈O₄

DEHP/DOTP

363.253

C₂₂H₃₄O₄

diheptyl phthalate

447.347

C₂₈H₄₆O₄

DIDP

419.316

C₂₆H₄₂O₄

DINP

475.378

1985.82.2, Part of surface with crystalline blooming, craquelure

1985

152.143

C₁₀H₁₇N

152.14→ 96, 135, 84

542.420

C₃₄H₅₅O₄N

542.42→ 285.28 (loss of C₁₆H₁₉O₂N), 152.14 (loss of C₂₄H₃₈O₄)

270.315

C₁₈H₃₉N

octadecylamine^a

white solid emulsifier and lubricant

391.284

C₂₄H₃₈O₄

DEHP/DOTP

363.253

C₂₂H₃₄O₄

diheptyl phthalate

363.25→ 247.13 (loss of C₇H₁₆O), 149.02 (loss of C₁₄H₃₀)

371.316

C₂₂H₄₂O₄

dioctyl adipate

371.32→ 259.19, 129.05

1992.61, (black knight) Sticky exudate

1976

413.363

C₂₅H₄₈O₄

dioctyl azelate

413.36→ 301.24, 171.10

441.393

C₂₇H₅₂O₄

dioctyl undecanedioate

441.39→ 329.27, 199.13

524.255

524.24→ 411.17, 411.17→ 289, 383 (MS³)

391.284

C₂₄H₃₈O₄

DEHP/DOTP

465.38

C₂₅H₅₂O₇

465.38 → 283.17, 423.17

1992.61, (yellow knight) Sticky exudate

1976

413.363

C₂₅H₄₈O₄

dioctyl azelate

441.393

C₂₇H₅₂O₄

dioctyl undecanedioate

524.255

524.24→ 411.17, 411.17→ 289, 383 (MS³)

391.284

C₂₄H₃₈O₄

DEHP/DOTP

465.380

C₂₅H₅₂O₇

2012.35.1, NVE

2011

419.316

C₂₆H₄₂O₄

DINP

2012.36, NVE

2011

391.284

C₂₄H₃₈O₄

DEHP/DOTP

371.316

C₂₂H₄₂O₄

dioctyl adipate

2020.44.1, NVE

2003

419.316

C₂₆H₄₂O₄

DINP