Compartir
Determination of the 34S of Total Sulfur in Solids; RSIL Lab Code 1800 (en Inglés)
Haiping Qi
(Autor)
·
Tyler B. Coplen
(Autor)
·
Kinga Revesz
(Autor)
·
Createspace Independent Publishing Platform
· Tapa Blanda
Determination of the 34S of Total Sulfur in Solids; RSIL Lab Code 1800 (en Inglés) - Qi, Haiping ; Coplen, Tyler B. ; Revesz, Kinga
$ 14.39
$ 17.99
Ahorras: $ 3.60
Elige la lista en la que quieres agregar tu producto o crea una nueva lista
✓ Producto agregado correctamente a la lista de deseos.
Ir a Mis ListasSe enviará desde nuestra bodega entre el
Lunes 03 de Junio y el
Martes 04 de Junio.
Lo recibirás en cualquier lugar de Estados Unidos entre 1 y 3 días hábiles luego del envío.
Reseña del libro "Determination of the 34S of Total Sulfur in Solids; RSIL Lab Code 1800 (en Inglés)"
The purpose of the Reston Stable Isotope Laboratory (RSIL) lab code 1800 is to determine the (34S/32S), abbreviated as 34S, of total sulfur in a solid sample. A Carlo Erba NC 2500 elemental analyzer (EA) is used to convert total sulfur in a solid sample into SO2 gas. The EA is connected to a continuous flow isotope-ratio mass spectrometer (CF-IRMS), which determines the relative difference in stable sulfur isotope-amount ratio (34S/32S) of the product SO gas. The combustion is quantitative; no isotopic fractionation is involved. Samples are placed in2tin capsules and loaded into a Costech Zero-Blank Autosampler on the EA. Under computer control, samples are dropped into a heated reaction tube that combines both the oxidation and the reduction reactions. The combustion takes place in a helium atmosphere that contains an excess of oxygen gas at the oxidation zone at the top of the reaction tube. Combustion products are transported by a helium carrier through the reduction zone at the bottom of the reaction tube to remove excess oxygen and through a separate drying tube to remove any water. The gas- phase products, mainly CO2, N2, and SO2, are separated by a gas chromatograph (GC). The gas is then introduced into the isotope-ratio mass spectrometer (IRMS) through a Thermo-Finnigan ConFlo II interface, which also is used to inject SO2 reference gas and helium for sample dilution. The IRMS is a Thermo Delta V Plus CF-IRMS. It has a universal triple collector with two wide cups and a narrow cup in the middle. It is capable of measuring mass/charge (m/z) 64 and 66 simultaneously. The ion beams from SO are as follows: m/z 64 = SO = 32S16O16O; and m/z 66 = SO = 34S16O16O primarily. 222
- 0% (0)
- 0% (0)
- 0% (0)
- 0% (0)
- 0% (0)
Todos los libros de nuestro catálogo son Originales.
El libro está escrito en Inglés.
La encuadernación de esta edición es Tapa Blanda.
✓ Producto agregado correctamente al carro, Ir a Pagar.
