Navigation Links
Measuring mercury: Common test may overestimate exposure from dental amalgam fillings
Date:3/20/2013

ury from fish that undergoes a type of chemical breakdown in the body called demethylation. The demethylated mercury from fish contributes significantly to the amount of inorganic mercury in the urine.

The U-M scientists relied on a natural phenomenon called isotopic fractionation to distinguish between the two types of mercury. All atoms of a particular element contain the same number of protons in their nuclei. However, a given element can have various forms, known as isotopes, each with a different number of neutrons in it nucleus.

Mercury has seven stable (nonradioactive) isotopes. During isotopic fractionation, different mercury isotopes react to form new compounds at slightly different rates. The U-M researchers relied on a type of isotopic fractionation called mass-independent fractionation to obtain the chemical fingerprints that enabled them to distinguish between exposure to methylmercury from fish and mercury vapor from dental amalgam fillings.


'/>"/>

Contact: Jim Erickson
ericksn@umich.edu
734-647-1842
University of Michigan
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Oceanographers develop method for measuring the pace of life in deep sediments
2. Measuring our carbon footprint
3. Measuring progesterone receptor expression to improve hormone-receptor-positive cancer management
4. Measuring mercury levels: Nano-velcro detects water-borne toxic metals
5. Bringing measuring accuracy to radical treatment
6. Measuring dispersal -- how well are soft-sediment invertebrate communities connected on the seafloor?
7. Measuring the exertion of mini-basketball players
8. New protocol recommendations for measuring soil organic carbon sequestration
9. New tool for measuring frozen gas in ocean floor sediments
10. A new method for measuring the flow of traffic a street has to bear by measuring atmospheric noise
11. Commonly used herbicides seen as threat to endangered butterflies
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/18/2015)... YORK , June 18, 2015 This ... US$ Million by the following Product Segments, which includes ... Systems, Chemiluminescence Immunoassay Systems, Radio Immunoassay Systems, and Nephelometric ... the US, Canada , ... Asia-Pacific , Latin America ...
(Date:6/17/2015)... JOSE, Calif. , June 17, 2015 /PRNewswire/ ... in human interface solutions, today announced that Xiaomi, ... adopted the Synaptics ® ClearPad ® ... of display driver integrated circuits (DDICs) for its ... Pro. By leveraging ClearPad for full in-cell display ...
(Date:6/16/2015)... , June 16, 2015 Fingerprint ... touch fingerprint sensors in the company,s portfolio from one of ... are planned to mainly take place during the third quarter ... Asia . Jörgen Lantto, CEO ... of    the   growing interest from smartphone OEMs in ...
Breaking Biology News(10 mins):Global Immunoassay Systems Market 2Global Immunoassay Systems Market 3Global Immunoassay Systems Market 4Global Immunoassay Systems Market 5Global Immunoassay Systems Market 6Global Immunoassay Systems Market 7Global Immunoassay Systems Market 8Global Immunoassay Systems Market 9Global Immunoassay Systems Market 10Global Immunoassay Systems Market 11Global Immunoassay Systems Market 12Global Immunoassay Systems Market 13Global Immunoassay Systems Market 14Global Immunoassay Systems Market 15Global Immunoassay Systems Market 16Global Immunoassay Systems Market 17Global Immunoassay Systems Market 18Global Immunoassay Systems Market 19Global Immunoassay Systems Market 20Global Immunoassay Systems Market 21Global Immunoassay Systems Market 22Global Immunoassay Systems Market 23Global Immunoassay Systems Market 24Global Immunoassay Systems Market 25Global Immunoassay Systems Market 26Global Immunoassay Systems Market 27Global Immunoassay Systems Market 28Global Immunoassay Systems Market 29Synaptics Touchscreen and Display Driver IC Solutions Power Xiaomi's Latest Flagship Smartphones 2Synaptics Touchscreen and Display Driver IC Solutions Power Xiaomi's Latest Flagship Smartphones 3FPC Receives Order for Touch Fingerprint Sensors of 375 MSEK 2
... has proven up to 88 per cent effective in ... of G study. The study appears in the ... It,s a crucial finding because the health product industry ... and environmental implications, says study author Mehrdad Hajibabaei. ...
... Mich. A team of researchers at Michigan State University ... functions. The results, published in the current issue of ... that decodes how E. coli bacteria figured out ... extra course of citrate. "It,s pretty nifty to see ...
... 2012-- Researchers have successfully developed a stable population of ... grown in large quantities in the laboratory and that ... types needed throughout the body. This powerful new research ... and disease is described in an article published in ...
Cached Biology News:Study: DNA barcoding can ID natural health products 2Evolution is as complicated as 1-2-3 2
(Date:6/30/2015)... , June 30, 2015  Custom Computer Specialists, Inc. ... that they are silver sponsors of the Primary Care ... sponsor, Custom is lending their support of PCDC,s mission ... Since its founding in 1993, PCDC has ... care area.  PCDC has financed over 100 completed primary ...
(Date:6/30/2015)... ... June 30, 2015 , ... ... company, launched “Cannavoices,” an unprecedented digital video and broadcast initiative. Produced by filmmakers, ... most dynamic collection of legal medical cannabis stories ever assembled. , Cannavoices ...
(Date:6/29/2015)... June 29, 2015 BioNano Genomics, Inc., the ... research institutes, announced today that a collaboration led by ... in the creation of the first comprehensive analysis of ... molecule methods for sequencing and genome mapping. This study, ... comprehensive analysis of the contiguous diploid human genome assembly ...
(Date:6/29/2015)... ... June 29, 2015 , ... The StampedeCon 2015 Big ... the fourth year in a row, will bring top technology professionals to St. Louis. ... the intersection of data and technology. The event is proudly sponsored by DataStax, Cisco, ...
Breaking Biology Technology:Custom Computer Specialists Announces Sponsorship Of The Primary Care Development Corporation's Corporate Circle 2Cannavoices Launches a Legal Medical Cannabis Documentary Initiative 2Cannavoices Launches a Legal Medical Cannabis Documentary Initiative 3BioNano Mapping Technology Achieves Most Contiguous Clone-free Human Genome Assembly to Date 2BioNano Mapping Technology Achieves Most Contiguous Clone-free Human Genome Assembly to Date 3StampedeCon Announces 2015 Agenda 2StampedeCon Announces 2015 Agenda 3
... with diarrhea and intestinal function may provide a new ... other neuropsychiatric disorders, according to a team of scientists ... in Science . Scientists have ... receptor protein, guanylyl cyclase-C (GC-C) for its role in ...
... of toxic mercury are released into the environment every year. ... into toxic methyl mercury, and enters the food chain ending ... BioMed Central,s open access journal BMC Biotechnology , showcases ... high levels of mercury but are also able to mop ...
... Transgenomic, Inc. (OTC/BB: TBIO) today reported financial results for ... business update. Second Quarter Financial ResultsNet sales ... increase of 50 percent compared with $5.1 million for the ... 59 percent of net sales, compared with gross profit of ...
Cached Biology Technology:Intestinal protein may have role in ADHD, other neurological disorders 2Transgenomic Reports Second Quarter Financial Results 2Transgenomic Reports Second Quarter Financial Results 3Transgenomic Reports Second Quarter Financial Results 4Transgenomic Reports Second Quarter Financial Results 5Transgenomic Reports Second Quarter Financial Results 6Transgenomic Reports Second Quarter Financial Results 7Transgenomic Reports Second Quarter Financial Results 8Transgenomic Reports Second Quarter Financial Results 9
GOAT ANTI SLI...
ANTI L-DOPA...
The Light Diagnostics Calicivirus Genotype 1&2 Typing OligoDetect assay is applicable for the qualitative detection of calicivirus RNA generated by an in-house validated in vitro nucleic acid amplifi...
Recombinant Rat CINC-2 alpha, CF...
Biology Products: