Bracketins versus multipoint calibration in determination of isocyanates in agglomerated cork stoppers

Inês Delgado; Catarina André; Ana Ramos; Ana Sofia Matos; K. Stockham; S. Kumaran; Isabel Castanheira

Bracketins versus multipoint calibration in determination of isocyanates in agglomerated cork stoppers

Inês Delgado, Catarina André, Ana Ramos, Ana Sofia Matos, K. Stockham, S. Kumaran, Isabel Castanheira

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

A calibration method was developed for the quantification of isocyanates in cork stoppers agglomerates. Bracketing and multipoint calibration curve was applied to a in-house optimized UPLC/DAD analytical method. The calibration curves were obtained by regression analysis using experimental points that covers the range of concentrations expected in real samples. A contaminated real sample was injected and MDI concentration was 6.2 % and 6.4% when calibration methods to calculate the content were multipoint or bracketing, respectively. According with our results both methods are complementary and necessary to guarantee the reliably of results obtained by chromatographic procedure.

Original language	English
Title of host publication	20th IMEKO World Congress 2012
Pages	696-699
Number of pages	4
Volume	1
Publication status	Published - 2012
Event	20th IMEKO World Congress 2012 - Busan, Korea, Republic of Duration: 9 Sep 2012 → 14 Sep 2012

Conference

Conference	20th IMEKO World Congress 2012
Country/Territory	Korea, Republic of
City	Busan
Period	9/09/12 → 14/09/12

Keywords

1,2PP
Bracketing
Calibration Curve
MDI
UPLC-DAD

Cite this

@inproceedings{9c4471f7d4034706a8c4bead3ade8581,

title = "Bracketins versus multipoint calibration in determination of isocyanates in agglomerated cork stoppers",

abstract = "A calibration method was developed for the quantification of isocyanates in cork stoppers agglomerates. Bracketing and multipoint calibration curve was applied to a in-house optimized UPLC/DAD analytical method. The calibration curves were obtained by regression analysis using experimental points that covers the range of concentrations expected in real samples. A contaminated real sample was injected and MDI concentration was 6.2 % and 6.4% when calibration methods to calculate the content were multipoint or bracketing, respectively. According with our results both methods are complementary and necessary to guarantee the reliably of results obtained by chromatographic procedure.",

keywords = "1,2PP, Bracketing, Calibration Curve, MDI, UPLC-DAD",

author = "In{\^e}s Delgado and Catarina Andr{\'e} and Ana Ramos and Matos, {Ana Sofia} and K. Stockham and S. Kumaran and Isabel Castanheira",

year = "2012",

language = "English",

isbn = "9781627481908",

volume = "1",

pages = "696--699",

booktitle = "20th IMEKO World Congress 2012",

note = "20th IMEKO World Congress 2012 ; Conference date: 09-09-2012 Through 14-09-2012",

}

Bracketins versus multipoint calibration in determination of isocyanates in agglomerated cork stoppers. / Delgado, Inês; André, Catarina; Ramos, Ana ; Matos, Ana Sofia; Stockham, K.; Kumaran, S.; Castanheira, Isabel.

20th IMEKO World Congress 2012. Vol. 1 2012. p. 696-699.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Bracketins versus multipoint calibration in determination of isocyanates in agglomerated cork stoppers

AU - Delgado, Inês

AU - André, Catarina

AU - Ramos, Ana

AU - Matos, Ana Sofia

AU - Stockham, K.

AU - Kumaran, S.

AU - Castanheira, Isabel

PY - 2012

Y1 - 2012

N2 - A calibration method was developed for the quantification of isocyanates in cork stoppers agglomerates. Bracketing and multipoint calibration curve was applied to a in-house optimized UPLC/DAD analytical method. The calibration curves were obtained by regression analysis using experimental points that covers the range of concentrations expected in real samples. A contaminated real sample was injected and MDI concentration was 6.2 % and 6.4% when calibration methods to calculate the content were multipoint or bracketing, respectively. According with our results both methods are complementary and necessary to guarantee the reliably of results obtained by chromatographic procedure.

AB - A calibration method was developed for the quantification of isocyanates in cork stoppers agglomerates. Bracketing and multipoint calibration curve was applied to a in-house optimized UPLC/DAD analytical method. The calibration curves were obtained by regression analysis using experimental points that covers the range of concentrations expected in real samples. A contaminated real sample was injected and MDI concentration was 6.2 % and 6.4% when calibration methods to calculate the content were multipoint or bracketing, respectively. According with our results both methods are complementary and necessary to guarantee the reliably of results obtained by chromatographic procedure.

KW - 1,2PP

KW - Bracketing

KW - Calibration Curve

KW - MDI

KW - UPLC-DAD

UR - http://www.scopus.com/inward/record.url?scp=84880442140&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84880442140

SN - 9781627481908

VL - 1

SP - 696

EP - 699

BT - 20th IMEKO World Congress 2012

T2 - 20th IMEKO World Congress 2012

Y2 - 9 September 2012 through 14 September 2012

ER -

Bracketins versus multipoint calibration in determination of isocyanates in agglomerated cork stoppers

Abstract

Conference

Keywords

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