Use of SEC-ICP-MS with a collision cell for determining the interaction of chromium with DNA extracted from metal-contaminated soils

The potential of chromium to bind to DNA isolated directly from soil microbial communities was investigated in this study. An analytical scheme was developed to distinguish between chromium bound to DNA and its fragments or chromium contained elsewhere in an environmental DNA extract. DNA was extrac...

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Veröffentlicht in:Analytical and bioanalytical chemistry 2006-09, Vol.386 (1), p.142-151
Hauptverfasser: Mueller-Spitz, Sabrina R, Vonderheide, Anne P, Shann, Jodi R, Caruso, Joseph A, Kinkle, Brian K
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container_start_page 142
container_title Analytical and bioanalytical chemistry
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creator Mueller-Spitz, Sabrina R
Vonderheide, Anne P
Shann, Jodi R
Caruso, Joseph A
Kinkle, Brian K
description The potential of chromium to bind to DNA isolated directly from soil microbial communities was investigated in this study. An analytical scheme was developed to distinguish between chromium bound to DNA and its fragments or chromium contained elsewhere in an environmental DNA extract. DNA was extracted from chromium-contaminated soils and purified using DNA clean-up resins. Size-exclusion chromatography was employed due to its advantages in the separation and molecular weight approximation of large biomolecules. It was coupled with two on-line detection systems (spectrophotometric and inductively coupled plasma mass spectrometric) to study the binding of chromium to DNA or other components in a DNA extract. A collision cell was pressurized with helium to remove diatomic and polyatomic interferents resulting from the chosen mobile phase. Chromium peaks were observed in both the large and small molecular weight regions of the chromatogram; to further confirm that the environmentally extracted DNA contained Cr, the subsequently purified DNA was examined for total Cr using flow injection ICP-MS to accommodate small sample volumes. DNA samples isolated from the two soils examined contained 0.5-0.7 ppb Cr, indicating that DNA isolated directly from a chromium-contaminated soil has chromium bound to the nucleic acids.
doi_str_mv 10.1007/s00216-006-0575-2
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An analytical scheme was developed to distinguish between chromium bound to DNA and its fragments or chromium contained elsewhere in an environmental DNA extract. DNA was extracted from chromium-contaminated soils and purified using DNA clean-up resins. Size-exclusion chromatography was employed due to its advantages in the separation and molecular weight approximation of large biomolecules. It was coupled with two on-line detection systems (spectrophotometric and inductively coupled plasma mass spectrometric) to study the binding of chromium to DNA or other components in a DNA extract. A collision cell was pressurized with helium to remove diatomic and polyatomic interferents resulting from the chosen mobile phase. Chromium peaks were observed in both the large and small molecular weight regions of the chromatogram; to further confirm that the environmentally extracted DNA contained Cr, the subsequently purified DNA was examined for total Cr using flow injection ICP-MS to accommodate small sample volumes. DNA samples isolated from the two soils examined contained 0.5-0.7 ppb Cr, indicating that DNA isolated directly from a chromium-contaminated soil has chromium bound to the nucleic acids.</description><identifier>ISSN: 1618-2642</identifier><identifier>EISSN: 1618-2650</identifier><identifier>DOI: 10.1007/s00216-006-0575-2</identifier><identifier>PMID: 16868731</identifier><language>eng</language><publisher>Germany: Berlin/Heidelberg : Springer-Verlag</publisher><subject>Biomolecules ; Chromatography, Gel - methods ; Chromium ; Chromium - analysis ; Chromium - chemistry ; Collision cell ; Coupling (molecular) ; Deoxyribonucleic acid ; DNA ; DNA - analysis ; DNA - chemistry ; Environmental DNA ; Environmental Monitoring - instrumentation ; Genetic testing ; Helium ; Inductively coupled plasma mass spectrometry ; Mass Spectrometry - instrumentation ; Mass Spectrometry - methods ; Microbial activity ; Microorganisms ; Molecular weight ; Nucleic acids ; Particle Size ; Resins ; SEC-ICP-MS ; Size exclusion chromatography ; Soil contamination ; Soil Pollutants - chemistry ; Soil pollution ; Soils ; Spectrometry ; Spectrophotometry ; Time Factors</subject><ispartof>Analytical and bioanalytical chemistry, 2006-09, Vol.386 (1), p.142-151</ispartof><rights>Springer-Verlag 2006.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c413t-4840bd326b1e760068c05632418d100d75b5dcf0365dfd7806db815adf4ec3b63</citedby><cites>FETCH-LOGICAL-c413t-4840bd326b1e760068c05632418d100d75b5dcf0365dfd7806db815adf4ec3b63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16868731$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Mueller-Spitz, Sabrina R</creatorcontrib><creatorcontrib>Vonderheide, Anne P</creatorcontrib><creatorcontrib>Shann, Jodi R</creatorcontrib><creatorcontrib>Caruso, Joseph A</creatorcontrib><creatorcontrib>Kinkle, Brian K</creatorcontrib><title>Use of SEC-ICP-MS with a collision cell for determining the interaction of chromium with DNA extracted from metal-contaminated soils</title><title>Analytical and bioanalytical chemistry</title><addtitle>Anal Bioanal Chem</addtitle><description>The potential of chromium to bind to DNA isolated directly from soil microbial communities was investigated in this study. An analytical scheme was developed to distinguish between chromium bound to DNA and its fragments or chromium contained elsewhere in an environmental DNA extract. DNA was extracted from chromium-contaminated soils and purified using DNA clean-up resins. Size-exclusion chromatography was employed due to its advantages in the separation and molecular weight approximation of large biomolecules. It was coupled with two on-line detection systems (spectrophotometric and inductively coupled plasma mass spectrometric) to study the binding of chromium to DNA or other components in a DNA extract. A collision cell was pressurized with helium to remove diatomic and polyatomic interferents resulting from the chosen mobile phase. 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An analytical scheme was developed to distinguish between chromium bound to DNA and its fragments or chromium contained elsewhere in an environmental DNA extract. DNA was extracted from chromium-contaminated soils and purified using DNA clean-up resins. Size-exclusion chromatography was employed due to its advantages in the separation and molecular weight approximation of large biomolecules. It was coupled with two on-line detection systems (spectrophotometric and inductively coupled plasma mass spectrometric) to study the binding of chromium to DNA or other components in a DNA extract. A collision cell was pressurized with helium to remove diatomic and polyatomic interferents resulting from the chosen mobile phase. Chromium peaks were observed in both the large and small molecular weight regions of the chromatogram; to further confirm that the environmentally extracted DNA contained Cr, the subsequently purified DNA was examined for total Cr using flow injection ICP-MS to accommodate small sample volumes. DNA samples isolated from the two soils examined contained 0.5-0.7 ppb Cr, indicating that DNA isolated directly from a chromium-contaminated soil has chromium bound to the nucleic acids.</abstract><cop>Germany</cop><pub>Berlin/Heidelberg : Springer-Verlag</pub><pmid>16868731</pmid><doi>10.1007/s00216-006-0575-2</doi><tpages>10</tpages></addata></record>
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source MEDLINE; SpringerLink Journals - AutoHoldings
subjects Biomolecules
Chromatography, Gel - methods
Chromium
Chromium - analysis
Chromium - chemistry
Collision cell
Coupling (molecular)
Deoxyribonucleic acid
DNA
DNA - analysis
DNA - chemistry
Environmental DNA
Environmental Monitoring - instrumentation
Genetic testing
Helium
Inductively coupled plasma mass spectrometry
Mass Spectrometry - instrumentation
Mass Spectrometry - methods
Microbial activity
Microorganisms
Molecular weight
Nucleic acids
Particle Size
Resins
SEC-ICP-MS
Size exclusion chromatography
Soil contamination
Soil Pollutants - chemistry
Soil pollution
Soils
Spectrometry
Spectrophotometry
Time Factors
title Use of SEC-ICP-MS with a collision cell for determining the interaction of chromium with DNA extracted from metal-contaminated soils
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