A Procedure for Rapid Determination of the Silicon Content in Plant Materials

2011 ◽  
Vol 66 (3) ◽  
pp. 289-294 ◽  
Author(s):  
Mike Neumann ◽  
Robert Nöske ◽  
Grete Bach ◽  
Thomas Glaubauf ◽  
Michael Bartoszek ◽  
...  
Keyword(s):  
Silicon Content ◽  
Rapid Determination ◽  
Low Cost ◽  
Growth And Yield ◽  
Icp Oes ◽  
Plant Materials ◽  
Aqua Regia ◽  
X Ray ◽  
Pre Treatment

An efficient, reliable and low-cost procedure to determine the silicon content in plant material is presented which allows to monitor the agricultural aspects like growth and yield. The presented procedure consists of a hydrochloric acid pre-treatment and a subsequent thermal oxidation. The method is compared to other processes like dissolution in hydrofluoric acid combined with ICP OES, energy-dispersive X-ray fluorescence spectroscopy (EDXRF) or aqua regia treatment.

A Procedure for Rapid Determination of the Silicon Content in Plant Materials

2011 ◽  
Vol 66 ◽  
pp. 0289 ◽  
Author(s):  
M. Neumann ◽  
R. Nöske ◽  
G. Bach ◽  
T. Glaubauf ◽  
M. Bartoszek ◽  
...  
Keyword(s):  
Silicon Content ◽  
Rapid Determination ◽  
Plant Materials

scholarly journals Rapid determination of hydrogen positions and protonation states of diisopropyl fluorophosphatase by joint neutron and X-ray diffraction refinement

2009 ◽  
Vol 106 (3) ◽  
pp. 713-718 ◽  
Author(s):  
Marc-Michael Blum ◽  
Marat Mustyakimov ◽  
Heinz Rüterjans ◽  
Kai Kehe ◽  
Benno P. Schoenborn ◽  
...  
Keyword(s):  
Rapid Determination ◽  
X Ray Diffraction ◽  
X Ray

Determination of 22 trace elements in high-purity copper including Se and Te by ETV-ICP OES using SF6, NF3, CF4and H2as chemical modifiers

2016 ◽  
Vol 31 (3) ◽  
pp. 642-657 ◽  
Author(s):  
J. Hassler ◽  
R. Matschat ◽  
S. Richter ◽  
P. Barth ◽  
A. K. Detcheva ◽  
...  
Keyword(s):  
Trace Elements ◽  
High Purity ◽  
Icp Oes ◽  
Chemical Modifiers ◽  
The Matrix ◽  
Scope Of Application ◽  
Pre Treatment ◽  
Purity Copper

Experiments with SF6, NF3, CF4and H2as new modifier gases for the matrix studied were performed. Pre-treatment steps of sub-samples (e.g., roasting) can now be omitted; the scope of application was enlarged to Au and hydride forming elements (such as Se, Te).

Rapid determination of arsenic in the presence of lead in a zinc sulphide matrix by X-ray fluorescence spectrometry

The Analyst ◽  
1988 ◽  
Vol 113 (8) ◽  
pp. 1325 ◽  
Author(s):  
Montserrat Baucells ◽  
Gloria Lacort ◽  
Montserrat Roura ◽  
Josefina de Gyves
Keyword(s):  
Rapid Determination ◽  
Zinc Sulphide ◽  
Fluorescence Spectrometry ◽  
X Ray

X-Ray Spectrometric Determination of Sulfate in Natural Waters

1979 ◽  
Vol 23 ◽  
pp. 133-141
Author(s):  
C. A. Seils ◽  
G. T. Tisue
Keyword(s):  
Natural Waters ◽  
Rapid Determination ◽  
Atomic Absorption Spectrophotometry ◽  
Good Choice ◽  
Small Samples ◽  
Selective Electrode ◽  
X Ray ◽  
Heavy Metal Cations ◽  
Improved Methods

A recent surge of interest in sulfur in the environment has revealed the need for improved methods of analysis for sulfate, SO4=, in rain, freshwater and sediment interstitial fluids. Ion chromatography permits the rapid determination of SO4= in the ppm range (1 ppm = 1 mgL'1 = 10 μmol L-1 sulfate) on relatively small samples with good specificity. If a suitable instrument is available, this technique is a good choice for many environmental analyses. Other approaches to sulfate analysis are based on its precipitation with organic or heavy metal cations, usually barium or lead. The amount of precipitate formed may be determined by inter alia gravimetry, turbidimetry, radiometry (using 133-Ba), atomic absorption spectrophotometry (Ba or Pb detection), potentiometry (using a Pb++ ion selective electrode) , colorimetry, or by x-ray fluorescence spectrometry (Ba, Pb or S detection)(1). Because of our experience with x-ray fluorescence analyses, we chose to develop and test a procedure using that technique.

Rapid determination of Ti in TiO2 by ICP OES

2016 ◽  
Vol 8 (34) ◽  
pp. 6463-6467 ◽  
Author(s):  
E. J. Dos Santos ◽  
M. P. Dos Santos ◽  
A. B. Herrmann ◽  
R. E. Sturgeon
Keyword(s):  
Rapid Determination ◽  
Accurate Method ◽  
Icp Oes

An improved, precise and accurate method for the quantitation of Ti by ICP OES in TiO2 pigments and related materials is proposed.

Determination of minerals in platinum concentrates from the Transvaal by X-ray methods

1932 ◽  
Vol 23 (138) ◽  
pp. 188-206 ◽  
Author(s):  
F. A. Bannister
Keyword(s):  
Solid Solution ◽  
New Mineral ◽  
Early Analysis ◽  
Aqua Regia ◽  
X Ray ◽  
Ray Methods ◽  
Platinum Mineral ◽  
Insoluble Portion

Concentrates from the platiniferous norites of the Bushveld, Transvaal, are not completely soluble in aqua regia. The insoluble portion consists of steel-grey fragments first analysed chemically by R. A. Cooper and considered by him to be a new platinum mineral represented by the formula Pt(As,S)2. The name cooperite was proposed for the new mineral by F. Wartenweiller, and after further work Cooper decided that the arsenic found in the early analysis was due to the presence of sperrylite, and he changed the formula to PtS2. H. Schneiderhöhn observed simple twinning and, less frequently, polysynthetie lamellae on polished sections of mineral grains from the same deposits, and he suggested that cooperite is probably orthorhombic and isomorphous with marcasite. The latest account of the new mineral has been published by H. R. Adam who gave several analyses of cooperite from the Rustenburg and Potgietersrust districts and concluded that the ‘mineral is PtS2 with a small amount of excess metal (platinum, palladium, and nickel) present in solid solution’.

Sign in / Sign up

Export Citation Format

Share Document