Forensic analysis of anthraquinone, azo, and metal complex acid dyes from nylon fibers by micro-extraction and capillary electrophoresis
The extraction and separation of dyes present on textile fibers offers the possibility of enhanced discrimination between forensic trace fiber evidence. An automated liquid sample handling workstation was programmed to deliver varying solvent combinations to acid-dyed nylon samples, and the resultin...
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| Veröffentlicht in: | Analytical and bioanalytical chemistry 2009-08, Vol.394 (8), p.2077-2085 |
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| container_title | Analytical and bioanalytical chemistry |
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| creator | Stefan, Amy R. Dockery, Christopher R. Nieuwland, Alexander A. Roberson, Samantha N. Baguley, Brittany M. Hendrix, James E. Morgan, Stephen L. |
| description | The extraction and separation of dyes present on textile fibers offers the possibility of enhanced discrimination between forensic trace fiber evidence. An automated liquid sample handling workstation was programmed to deliver varying solvent combinations to acid-dyed nylon samples, and the resulting extracts were analyzed by an ultraviolet/visible microplate reader to evaluate extraction efficiencies at different experimental conditions. Combinatorial experiments using three-component mixture designs varied three solvents (water, pyridine, and aqueous ammonia) and were employed at different extraction temperatures for various extraction durations. The extraction efficiency as a function of the three solvents (pyridine/ammonia/water) was modeled and used to define optimum conditions for the extraction of three subclasses of acid dyes (anthraquinone, azo, and metal complex) from nylon fibers. The capillary electrophoresis analysis of acid dye extracts is demonstrated using an electrolyte solution of 15 mM ammonium acetate in acetonitrile/water (40:60,
v
/
v
) at pH 9.3. Excellent separations and discriminating diode array spectra are obtained even for dyes of similar color.
Figure
Capillary electropherogram of three acid dyes extracted from nylon 6,6 thread |
| doi_str_mv | 10.1007/s00216-009-2875-9 |
| format | Article |
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v
/
v
) at pH 9.3. Excellent separations and discriminating diode array spectra are obtained even for dyes of similar color.
Figure
Capillary electropherogram of three acid dyes extracted from nylon 6,6 thread</description><identifier>ISSN: 1618-2642</identifier><identifier>EISSN: 1618-2650</identifier><identifier>DOI: 10.1007/s00216-009-2875-9</identifier><identifier>PMID: 19543716</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Ammonia ; Analytical Chemistry ; Biochemistry ; Characterization and Evaluation of Materials ; Chemistry ; Chemistry and Materials Science ; Combinatorial analysis ; Dyes ; Extraction ; Fibers ; Food Science ; Laboratory Medicine ; Mathematical models ; Monitoring/Environmental Analysis ; Nylons ; Original Paper ; Solvents</subject><ispartof>Analytical and bioanalytical chemistry, 2009-08, Vol.394 (8), p.2077-2085</ispartof><rights>Springer-Verlag 2009</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c473t-21f4cb9e87438667969300cbbd78e4c219b3193a834fa9a156da7901581f94ec3</citedby><cites>FETCH-LOGICAL-c473t-21f4cb9e87438667969300cbbd78e4c219b3193a834fa9a156da7901581f94ec3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00216-009-2875-9$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00216-009-2875-9$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27922,27923,41486,42555,51317</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19543716$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Stefan, Amy R.</creatorcontrib><creatorcontrib>Dockery, Christopher R.</creatorcontrib><creatorcontrib>Nieuwland, Alexander A.</creatorcontrib><creatorcontrib>Roberson, Samantha N.</creatorcontrib><creatorcontrib>Baguley, Brittany M.</creatorcontrib><creatorcontrib>Hendrix, James E.</creatorcontrib><creatorcontrib>Morgan, Stephen L.</creatorcontrib><title>Forensic analysis of anthraquinone, azo, and metal complex acid dyes from nylon fibers by micro-extraction and capillary electrophoresis</title><title>Analytical and bioanalytical chemistry</title><addtitle>Anal Bioanal Chem</addtitle><addtitle>Anal Bioanal Chem</addtitle><description>The extraction and separation of dyes present on textile fibers offers the possibility of enhanced discrimination between forensic trace fiber evidence. An automated liquid sample handling workstation was programmed to deliver varying solvent combinations to acid-dyed nylon samples, and the resulting extracts were analyzed by an ultraviolet/visible microplate reader to evaluate extraction efficiencies at different experimental conditions. Combinatorial experiments using three-component mixture designs varied three solvents (water, pyridine, and aqueous ammonia) and were employed at different extraction temperatures for various extraction durations. The extraction efficiency as a function of the three solvents (pyridine/ammonia/water) was modeled and used to define optimum conditions for the extraction of three subclasses of acid dyes (anthraquinone, azo, and metal complex) from nylon fibers. The capillary electrophoresis analysis of acid dye extracts is demonstrated using an electrolyte solution of 15 mM ammonium acetate in acetonitrile/water (40:60,
v
/
v
) at pH 9.3. Excellent separations and discriminating diode array spectra are obtained even for dyes of similar color.
Figure
Capillary electropherogram of three acid dyes extracted from nylon 6,6 thread</description><subject>Ammonia</subject><subject>Analytical Chemistry</subject><subject>Biochemistry</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Combinatorial analysis</subject><subject>Dyes</subject><subject>Extraction</subject><subject>Fibers</subject><subject>Food Science</subject><subject>Laboratory Medicine</subject><subject>Mathematical models</subject><subject>Monitoring/Environmental Analysis</subject><subject>Nylons</subject><subject>Original Paper</subject><subject>Solvents</subject><issn>1618-2642</issn><issn>1618-2650</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNp9kcFu1DAQhi1ERcvCA3BBPgEHAp7YseMjqiggVeqlnC3HmVBXiZ3aidTwBDx2vewKbnuZGWm--T2en5A3wD4BY-pzZqwGWTGmq7pVTaWfkQuQ0Fa1bNjzf7Woz8nLnO8Zg6YF-YKcg24EVyAvyJ-rmDBk76gNdtyyzzQOpV7ukn1YfYgBP1L7O5YQejrhYkfq4jSP-Eit8z3tN8x0SHGiYRtjoIPvMGXabXTyLsUKH5dk3eJLa6_g7OzH0aaN4ohuSXG-KwuUZ1-Rs8GOGV8f8478vPp6e_m9ur759uPyy3XlhOJLVcMgXKexVYK3UiotNWfMdV2vWhSuBt1x0Ny2XAxWW2hkb5X--_FBC3R8R94fdOcUH1bMi5l8dlh2ChjXbFTDJa8lsEK-O0nKggqlRQE_nARBCaGYhCK8I3BAy2lyTjiYOfmpnMMAM3tPzcFTUzw1e0-NLjNvj_JrN2H_f-JoYgHqA5BLK_zCZO7jmoqd-YTqE2paraw</recordid><startdate>20090801</startdate><enddate>20090801</enddate><creator>Stefan, Amy R.</creator><creator>Dockery, Christopher R.</creator><creator>Nieuwland, Alexander A.</creator><creator>Roberson, Samantha N.</creator><creator>Baguley, Brittany M.</creator><creator>Hendrix, James E.</creator><creator>Morgan, Stephen L.</creator><general>Springer-Verlag</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><scope>7X8</scope><scope>7QH</scope><scope>7UA</scope><scope>C1K</scope></search><sort><creationdate>20090801</creationdate><title>Forensic analysis of anthraquinone, azo, and metal complex acid dyes from nylon fibers by micro-extraction and capillary electrophoresis</title><author>Stefan, Amy R. ; 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An automated liquid sample handling workstation was programmed to deliver varying solvent combinations to acid-dyed nylon samples, and the resulting extracts were analyzed by an ultraviolet/visible microplate reader to evaluate extraction efficiencies at different experimental conditions. Combinatorial experiments using three-component mixture designs varied three solvents (water, pyridine, and aqueous ammonia) and were employed at different extraction temperatures for various extraction durations. The extraction efficiency as a function of the three solvents (pyridine/ammonia/water) was modeled and used to define optimum conditions for the extraction of three subclasses of acid dyes (anthraquinone, azo, and metal complex) from nylon fibers. The capillary electrophoresis analysis of acid dye extracts is demonstrated using an electrolyte solution of 15 mM ammonium acetate in acetonitrile/water (40:60,
v
/
v
) at pH 9.3. Excellent separations and discriminating diode array spectra are obtained even for dyes of similar color.
Figure
Capillary electropherogram of three acid dyes extracted from nylon 6,6 thread</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><pmid>19543716</pmid><doi>10.1007/s00216-009-2875-9</doi><tpages>9</tpages></addata></record> |
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| subjects | Ammonia Analytical Chemistry Biochemistry Characterization and Evaluation of Materials Chemistry Chemistry and Materials Science Combinatorial analysis Dyes Extraction Fibers Food Science Laboratory Medicine Mathematical models Monitoring/Environmental Analysis Nylons Original Paper Solvents |
| title | Forensic analysis of anthraquinone, azo, and metal complex acid dyes from nylon fibers by micro-extraction and capillary electrophoresis |
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