Accurate determination of sulfur in biodiesel using Isotope Dilution-Triple Quadrupole ICP-MS (ID-ICP-QQQ)
نویسندگان
چکیده
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.
منابع مشابه
Determination of P , Si and S in acid digested lubricating oil using the Agilent 8800 Triple Quadrupole ICP - MS Application note
A new method is described for the accurate determination of silicon (Si), phosphorus (P), and sulfur (S) in lubricating oil samples using an Agilent 8800 Triple Quadrupole ICP-MS (ICP-QQQ). An optimized oxygen (O2) massshift method provided limits of detection for 28Si, 31P, 32S and 34S of 0.25, 0.01, 0.18 and 0.75 ppb, respectively. The method was successfully applied to the determination of S...
متن کاملSulfur isotope fractionation analysis in mineral waters using an Agilent 8900 ICP-QQQ
Stable isotope geochemistry is a branch of geology that investigates the age of natural materials, their origin and the processes they have undergone since formation [1]. Stable isotope analysis is also used in biogeochemical studies to monitor element cycling in ecosystems [2] and to identify geographical/regional differences for food provenance and archaeology. Of the elements of interest in ...
متن کاملAgilent 8800 Triple Quadrupole ICP-MS: Understanding oxygen reaction mode in ICP-MS/MS
The use of oxygen as a reaction gas for the removal of interferences in quadrupole ICP-MS is well established. However, prior to the development of the Agilent 8800 Triple Quadrupole ICP-MS (ICP-QQQ), the use of oxygen had been limited to determination of a small number of analytes in simple, well defined matrices. This is because oxygen can react with matrix components, analytes and polyatomic...
متن کاملDetermination of selenium in serum in the presence of gadolinium with ICP-QQQ-MS.
Gadolinium (Gd)-based magnetic resonance imaging (MRI) contrasting agents interfere with the determination of selenium (Se) when analysed by single quadrupole inductively coupled plasma-mass spectrometry (ICP-MS). This paper demonstrates that an ICP-triple quadrupole-MS (ICP-QQQ-MS) with oxygen mass shift overcomes Gd(++) interference on Se(+) and mitigates typically encountered matrix and spec...
متن کاملThe accurate measurement of selenium in twelve diverse reference materials using on-line isotope dilution with the 8800 Triple Quadrupole ICP-MS in MS/MS mode Author
Selenium (Se) is an important element in environmental and agricultural studies and in human health, as it is an essential trace nutrient but is also toxic in excess. The role of certain chemical forms of Se is also the subject of signifi cant research into cancer prevention. ICP-MS is the analytical method of choice for both total and speciated Se measurements, but Se is diffi cult to quantify...
متن کامل