ETV-ICP-OES TECHNICAL GUIDE THE MOST ACCURATE ......Perfectlydapted a to purified graphite,...
Transcript of ETV-ICP-OES TECHNICAL GUIDE THE MOST ACCURATE ......Perfectlydapted a to purified graphite,...
TEC
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ETV-ICP-OES THE MOST ACCURATE
DETECTION LIMITSFOR HIGH PURITY CARBON
AND GRAPHITE
Electro Thermal Vaporization & Inductively Coupled Plasma OpticalEmissionSpectrometry
Thehigh-techapplicationsofgraphite(semiconductors,photovoltaics,nuclear…) often require strict control over impurities in the material.After setting the standard for supplying the highest purity graphitein the industry, Mersen now offers the most sophisticated methodfor measuring graphite purity. The ETV-ICP analytical methodhas been applied to develop a powerful, rapid and reliable tool foranalysing impurity content of solid samples with very low limits ofdetection.ETV-ICPhasproventobethereferenceforanalysinggraphiteandcanbeconsideredasstate-of-the-arttechnique.
Sampling, loading and heatingThegraphitesample(solidorpowder)isloadedintoahigh temperature graphite furnace. The sample isheatedupto2800°C.
ArgonFreongases
Graphite solid sample containing impurities
2800°C
F2
Analytes (fluorides)
..light
.
matrix
Fluorides (=analytes)
F2 + impurities fluorides
...
polychromator spectrometer
Electro Thermal VaporizationFreon gas and Argon carrier gas circulate in the furnace.Theprecursorgasdecomposes intoFluor (F2), that reactswithimpuritiescontained ingraphite to formfluorides (analytes),andextractsthemfromthegraphitematrix.
Inductively Coupled PlasmaThegascarryinganalytes(fluorideswithimpurities)isintroducedintoaplasmachamber.Moleculesareexcitedunderplasmaandemitlightwithdifferentwavelengthscharacteristicofeachatomofimpurity.
Optical Emission SpectrometryLightisthendecomposedbywavelengththroughapolychromator(prism-like)andanalysedbyaspectrometer.Light intensityatagivenwavelengthisdirectlyproportionaltotheconcentrationofanatomintheplasma.Thusexactcontentproportionofeachatomcanbecalculated.
How does it work?
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ETV-ICP OES
Data herein contained are provided for general information purpose only and are not binding. Mersen shall have no liability whatsoever with respect to information contained herein. Duplication, reproduction or translation of any information contained herein, in whole or in part, is strictly prohibited without prior written consent of Mersen. Our materials are in conformity with the RoHS-Directive (Restriction of the use of certain Hazardous Substances in electrical and electronic equipment). Besides Mersen guarantees the application of the European Community REACH-Regulation (Registration, Evaluation, Authorization and Restriction of Chemical substances) to all its plants located in Europe.
Contamination-free introduction of samples without sample decomposition ordilution.Solidaswellasliquidsamplingispossible.Samplingandcalibrationofgraphitepossiblewithexistingstandardsandreferencesolutions,which isnot thecasewith theGDMSmethod (GlowDischargeMassSpectrometry).Very effective thanks to high transport efficiency of gases used. No spectralinterferencefromthematrix.Simpleandrapidacquisition:upto50samplesanalysedperdaywithautomaticloading.Suitableforroutineanalysis.Very low limits of detection for most elements of the periodic classification,1-50µg/kg=ppb(partsperbillion).Perfectly adapted to purified graphite, carbon/carbon composite and carboninsulationmaterials.Value-addedserviceforcustomers.
Advantages of the ETV-ICP analytical method
HHydrogen
RbRubinium
CsCesium
FrFrancium
PmPromethium
TcTechnetium
PdPalladium
PtPlatinum
IrIridium
OsOsmium
NpNeptunium
PuPlutonium
AmAmericium
CmCurium
BkBerkelium
TbTerbium
HoHolmium
ErErbium
TmThulium
YbYtterbium
LuLutetium
CfCalifornium
EsEinsteinium
FmFermium
MdMendelevium
NoNobelium
LrLawrencium
LiLithium
5
NaSodium
10
KPotassium
RaRadium
AcActinium
10
BaBarium
1
CaCalcium
1
BeBeryllium
1
MgMagnésium
0.1
SrStrondium
1
LaLanthanum
1
ScScandium
1
YYttrium
1
RfRutherfordium
DbDubium
HfHafnium
1
TiTitanium
2
ZrZirconium
1
TaTantalum
10
VVanadium
2
NbNobium
5
WTungsten
10
CrChromium
5
MoMolybdenum
FeIron
2
RuRuthenium
20
CoCobalt
2
NiNickel
5
CuCopper
2
ZnZinc
1
GaGallium
5
GeGermanium
50
AsArsenic
20
AlAluminium
10
BBoron
5
SiSilicon
50
PPhosphorus
20
SSulfur
30
SeSelenium
20
AgSilver
10
CdCadmium
5
InIndium
30
SnTin
10
SbAntimony
50
TeTellurium
20
AuGold
50
HgMercury
100
TlThallium
30
PbLead
10
BiBismuth
5Po
Polonium
RhRhodium
510
ReRhenium
5
MnManganese
1
ThThorium
5
CeCerium
5
UUranium
10
NdNeodymium
5
SmSamarium
5
EuEuropium
5
GdGadolinium
5
DyDysprosium
5
PaProtactinium
PrPraseodymium
10
CCarbon
NNitrogen
OOxygen
FFluorine
NeNeon
ClChlorine
ArArgon
BrBromine
KrKrypton
IIodine
XeXenon
AtAstatine
RnRadon
HeHelium
Detection Limits ug/Kg = ppb (Parts per Billion)Quantified with ETV-ICP OES
Not Quantified
Not Possible to Quantify
Quantified with ETV-ICP OESwith other parameters
White numbers de�ne - Units selected Elements for Polychrometer (35). All Blue & Green Elements detectable using Monochrometer (selectable)
ETV-ICP OES, Limits of DetectionETV-ICP-OES, Limits of detection
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Contact for EuropeMERSEN France Gennevilliers SAS41 rue Jean Jaurès - BP 148F-92231 GENNEVILLIERS CEDEXFRANCETel: +33 (0) 1 41 85 45 55Fax: +33 (0) 1 41 85 43 53E-mail: [email protected]
Contact for AsiaMERSEN Kunshan Co. Ltd.#29 South Taihu Road,Kunshan Development Zone,Kunshan, Jiangsu Province,215334, PR CHINATel.: +86 512 5763 9808Fax: +86 512 5763 9811
www.mersen.com
Contact in North AmericaMERSEN USA BN Corp.Bay City Branch,900 Harrison StreetBay City, MI 48708, USATel.: +1 989 894 29 11Fax: +1 989 895 77 40 H
T28
GB
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ETV-ICP-OES THE MOST ACCURATE
DETECTION LIMITSFOR HIGH PURITY CARBON
AND GRAPHITE