Low-Level Mercury Speciation in Freshwaters by Isotope Dilution GC-ICP-MS
نویسندگان
چکیده
منابع مشابه
Accurate determination of sulfur in biodiesel using Isotope Dilution-Triple Quadrupole ICP-MS (ID-ICP-QQQ)
The development of accurate, sensitive and fast analytical methods for the determination of low levels of sulfur (S) in organic matrices is important in several applications. In this note we concentrate on the determination of S in biodiesel, but the methodology is also applicable to the determination of S (plus other elements) in other matrices such as biological materials and S-containing drugs.
متن کاملTrace-level determination of 1,4-dioxane in water by isotopic dilution GC and GC-MS.
The volatile and polar solvent 1,4-dioxane has recently been reported as a contaminant of ground and surface waters, establishing the need to determine this substance in drinking water. This investigation established that 1,4-dioxane can be determined in water by various techniques including direct aqueous injection (DAI) gas chromatography (GC) and purge and trap GC-mass spectrometry (MS). Pur...
متن کاملDetermination of N-nitrosodimethylamine in environmental aqueous samples by isotope-dilution GC/MS-SIM.
An analytical method for the determination of N-nitrosodimethylamine (N-NDMA) in environmental aqueous samples has been developed using isotope dilution gas chromatography/mass spectrometry in the selected ion monitoring mode (GC/MS-SIM). After deuterated N-nitrosodimethylamine (d6-N-NDMA) as surrogate standard was added to the samples, the analytes were extracted with methylene chloride, dried...
متن کاملDetermination of Butyltin Compounds in Environmental Samples by Isotope Dilution GC-MS Application
A GC-MS with electron impact ionization was used for the development of a speciation method for the simultaneous determination of monobutyl-, dibutyl-, and tributyltin in environmental samples (waters, sediments, and biota). The method is based on the use of a mixed spike containing Sn-enriched monobutyltin (MBT), dibutyltin (DBT), and tributyltin (TBT) for isotope dilution analysis. The mixed ...
متن کاملReference measurement procedure for total glycerides by isotope dilution GC-MS.
BACKGROUND The CDC's Lipid Standardization Program established the chromotropic acid (CA) reference measurement procedure (RMP) as the accuracy base for standardization and metrological traceability for triglyceride testing. The CA RMP has several disadvantages, including lack of ruggedness. It uses obsolete instrumentation and hazardous reagents. To overcome these problems the CDC developed an...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Environmental Science & Technology
سال: 2009
ISSN: 0013-936X,1520-5851
DOI: 10.1021/es802656p