A gas chromatography/high-resolution mass spectrometry (GC/HRMS) method for determination of polybrominated diphenyl ethers in fish

Alaee, Mehran; Sergeant, D.B.; Ikonomou, Michael G.; Luross, Jennifer M.

doi:10.1016/s0045-6535(00)00311-8

Cited by 88 publications

(55 citation statements)

References 12 publications

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“…Analyses of PBDEs in environmental samples use highresolution gas chromatography (HRGC) almost exclusively, coupled with appropriate detectors including electron-impact (EI) mass spectrometer (MS), electron-capture negative chemical ionization (NCI) MS or others [10][11][12]. Identification of the PBDE congeners in unknown samples relies on the matching of characteristic MS spectrum and/or the GC retention time with those of pure chemical standards.…”

Section: Introductionmentioning

confidence: 99%

Development of quantitative structure gas chromatographic relative retention time models on seven stationary phases for 209 polybrominated diphenyl ether congeners

Wang

Liu

et al. 2006

Journal of Chromatography A

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Quantitative structure retention relationships (QSRRs) were developed to predict the gas chromatographic (GC) relative retention times (RRTs) for 209 polybrominated diphenyl ether (PBDE) congeners using the heuristic method included in the computer software Comprehensive Descriptors for Structural and Statistical Analysis (CODESSA). A total of 445 constitutional, topological, geometrical, electrostatic, and semi-empirical quantum chemical descriptors were derived for all PBDEs. Using experimental RRT data for 126 PBDE congeners from the literature, predictive regression models were built for seven individual GC capillary columns differing in stationary phases. Each model includes four descriptors which included Wiener index, Randic index, polarity parameter, etc., selected by CODESSA. High predictability was obtained. High multiple correlation coefficients R 2 indicated that >98.5% (except for stationary phase CP-Sil 19) of the total variation in the predicted RRTs is explained by the fitted models. The models were subsequently used to predict the RRTs of the remaining 83 PBDE congeners on seven different stationary phases. The statistical results show that, compared with others, DB-XLB column not only produces the least number of peak overlaps but also results in shorter retention times.

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Section: Introductionmentioning

confidence: 99%

Development of quantitative structure gas chromatographic relative retention time models on seven stationary phases for 209 polybrominated diphenyl ether congeners

Wang

Liu

et al. 2006

Journal of Chromatography A

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“…Therefore, as companies adopt HRMS, health-related costs may decrease while providing better quality services to employees who can receive health services as a product. [11] A harmonious, healthy workplace provides all employees with the benefits of corporate wellness.…”

Section: Resultsmentioning

confidence: 99%

How Health Relationship Management Services (HRMS) Benefits Corporate Wellness

Tehrani¹

2016

Int J Biomed

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The typical worker spends about 47 hours a week commuting sitting in cars, trains, buses, or sitting at their desks. These statistics show that maintaining a healthy work and life balance has become progressively important. Workplace wellness and health promotion are of central importance for any organization in today's world. People are becoming highly conscious about their health and seek to ensure that they are provided with best medical services and facilities in case of any health issue. Organizations have switched to proactive strategies for the healthcare of their employees. Billions of dollars are spent on the workforce only after illnesses or injuries have occurred. Over the past several decades, healthcare services have drastically changed, altering the manner in which healthcare was previously managed. Technological advancements in medical systems have revolutionized the healthcare industry, and digital health tracking has been quite successful in monitoring patients' health. Since patients are continuously monitored, no matter where they are, these systems can indicate patients' adherence to medical protocols and act as a warning sign for such diseases as heart problems, Alzheimer's disease, and many others. Health Relationship Management Services (HRMS) is a new paradigm which defines comprehensive healthcare for an individual. HRMS is a complete health ecosystem suitable for the workplace, which enables healthcare providers to collect personal health data from various sources, analyze it for positive outcomes, and take action to preserve an employee's good health to reduce absenteeism or turnover. HRMS can act as a preventative sentinel for corporate well-being as well. (Int J Biomed. 2016;6(2):143-145.).

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“…The main criterion to identify this interference is the differences in ion ratio. This has been identified as an acceptance criterion in the determination of PCDD and PCDF [16], was adopted in a recently developed method [17]. This problem is not limited to this case only, other isobaric interfer- ences between PCB and PBDE homologue groups have been observed, and are presented in Table 2.…”

Section: Resultsmentioning

confidence: 99%

Potential interference of PBDEs in the determination of PCBs and other organochlorine contaminants using electron capture detection

Alaee¹,

Backus

Cannon

2001

J. Sep. Science

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A gas chromatography/high-resolution mass spectrometry (GC/HRMS) method for determination of polybrominated diphenyl ethers in fish

Cited by 88 publications

References 12 publications

Development of quantitative structure gas chromatographic relative retention time models on seven stationary phases for 209 polybrominated diphenyl ether congeners

Development of quantitative structure gas chromatographic relative retention time models on seven stationary phases for 209 polybrominated diphenyl ether congeners

How Health Relationship Management Services (HRMS) Benefits Corporate Wellness

Potential interference of PBDEs in the determination of PCBs and other organochlorine contaminants using electron capture detection

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