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Lab Manager's Independent guIde to purchasIng an eLeMentaL anaLyzerSEPTEMBER 2011 CoPyRighT © laB ManagER MagazinE®
laboratories worldwide use elemental analyzers for measuring the carbon, hydrogen, nitrogen, sulfur, oxygen, and halogen content in
samples such as chemical-reaction products, soil, bodily fluids, and waste or drinking water. Benchtop elemental analyzers come in a
variety of types for specific applications: total organic content (ToC), total organic halogens (ToX), nitrogen, nitrogen concentration
relative to protein (nitrogen derived from protein molecules), and Chn analyzers, named after the three most common elements they
measure—carbon (C), hydrogen (h), nitrogen (n).
This purchasing guide presents models of benchtop elemental analyzers currently available for the laboratory.
IntroductIon:
Common for environmental work, ToX analyzers measure total organic halogens (chlorine, fluorine, bromine, and iodine) in surface water, groundwater, wastewater, and soils to determine contamination from sources such as chlorinated pesticides and industrial solvents.
ToX analyzers are often converted to analyze absorbable organic halogen (aoX), extractable organic halogen (EoX), and purgeable organic halogen (PoX).
toX analyzers
Analytik Jena AGmulti X 2500
CE InstrumentsECS 3000
MitsubishiMitsubishi AOX-200
TE InstrumentsXplorer
ToC instruments indirectly measure organic molecules in water, a popular choice for testing water quality and validating cleaning procedures. These instruments oxidize carbon in a sample and then measure the carbon dioxide produced.
a typical ToC analysis measures both the total carbon present and the inorganic carbon from dissolved carbon dioxide and carbonic acid salts. Subtracting inorganic carbon from the total carbon yields the ToC. another common instrument version removes the inorganic carbon portion first and then measures the leftover carbon.
toc analyzers
a ToC analyzers measure total organic content only.
HachastroTOC UV Turbo TOC
SGE ANATOC Series II TOC Analyzer
ShimadzuTOC-L Series
ShimadzuTOC Vcs/TOC Vcp
Sievers900 TOC Analyzer
Sievers900 Portable TOC Analyzer
Teledyne TekmarFusion
TOC Systems, IncStartTOC Automactic
TOC Systems, IncStarTOC Semi-Automatic
OI AnalyticalAurora 1030W
SkalarPrimacsSLC
ShimadzuTOC-Vws/TOC-VWP
SieversInnovOx Laboratory TOC
Sievers5310 C Laboratory TOC Analyzer
Sievers5310 C Portable TOC Analyzer
Thermo ScientificHiPerTOC
TOC Systems, IncStarTOC Solids Analyzer
B ToC/Tn analyzers measure total organic carbon and total nitrogen (Tn) on one instrument.
Analytik Jena AGmulti N/C 2100
Analytik Jena AGmulti N/C UV HS
Elementar Analysensysteme GmbHvario TOC cube
OI AnalyticalAurora 1030C
ShimadzuTOC-L Series
Skalar FormacsLT
Teledyne TekmarTorch Combustion TOC/TN Analyzer
Analytik Jena AGmulti N/C 3100
Analytik Jena AGmulti N/C pharma
Elementar Analysensysteme GmbHliquiTOC II
ShimadzuTNM-L TN
ShimadzuTOC Vcs/TOC Vcp
SkalarFormacsHT
nitrogen analyzers—instrumental alternatives to manual Kjeldahl digestion methods—feature two types: total nitrogen analyzers (Tn) and nitrogen relative to protein content analyzers (n-Protein).
nItrogen analyzers
a Monitoring the total nitrogen content (Tn) from nitrates, nitrites, and ammonia is common in biological
and oxygen level studies of waters and wastewaters, such as determining the effects of fertilizer runoff.
MitsubishiTN-100
ShimadzuTN-4110
MitsubishiTN-110
SkalarFormacsTN
B Since proteins are 16 percent nitrogen on average, measuring nitrogen content relative to protein (n-Protein)—common in food analysis—indicates protein level.
LecoTruMac Series Macro Determinator
EuroVectorN-Protein Analyzer
Thermo ScientificFLASH 2000 N/ Protein Analyzer
LecoTruSpec Elemental Determinator
LecoFP-528
Elementar Analysensysteme GmbHvario EL cube
Elementar Analysensysteme GmbHrapid N cube
Thermo ScientificFLASH 4000 N/ Protein Analyzer
Perkin Elmer2410 Series II Nitrogen Analyzer
Chn analyzers determine the elemental composition of solids, liquids, and gases by measuring the carbon dioxide, water, and nitric oxide produced after sample combustion.
Beyond carbon, hydrogen, and nitrogen, some instruments also measure sulfur (S), oxygen (o), and chlorine (Cl); others specialize in identifying only one or two elements, such as h and CS analyzers. Chn analysis has traditionally determined the empirical formula of unknown organic compounds in biology and synthetic chemistry labs.
a These Chn analyzers measure carbon.
c and these Chn analyzers measure oxygen.
cHn analyzers
BrukerG4 ICARUS CS HF
BrukerG8 GALILEO ON/H
BrukerG4 PHOENIX DH
EuroVectorEA3000
Elementar Analysensysteme GmbHrapid CS cube
Horiba ScientificEMGA-930
Elementar Analysensysteme GmbHvario MAX CNS
Horiba ScientificEMGA-920
Horiba ScientificEMIA-8100
LecoONH836 Series
LecoDH603
LecoTCH600-series
LecoSC632
Thermo ScientificFLASH 2000 CHNS/O Analyzer
LecoCS230-Series
LecoTruMac Series Macro Determinator
MitsubishiTS-100
Thermo ScientificFLASH 2000 NC Analyzer
BrukerG4 ICARUS CS TF
Elementar Analysensysteme GmbHvario MICRO cube
Elementar Analysensysteme GmbHvario MACRO cube
Elementar Analysensysteme GmbHtrace SN cube
Exeter Analytical, Inc.CE-440
HEKAtech GMBHEuro EA
B These Chn analyzers measure chlorine.
Elementar Analysensysteme GmbHvario EL cube
MitsubishiTOX-100
Analytik Jena AGmulti EA 5000
Analytik Jena AGmulti EA 4000
MitsubishiNSX-2100H
Elementar Analysensysteme GmbHvario MAX CHN
Horiba ScientificEMGA-600
Horiba ScientificEMGA-620W/C
Horiba ScientificEMIA-V2
Horiba ScientificEMGA-620W
LecoTruSpec Elemental Determinator
Horiba ScientificEMGA-920
LecoRHEN602
LecoTC500-Series
LecoSC-144DR
LecoTC400-Series
LecoTC500-Series
LecoCS844
LecoCS600-Series
LecoRC612
MitsubishiTS-100V
Author: John Buie
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LAB MANAGER MAGAZINE’S
INDEPENDENTGUIDE TO PURCHASING AN ELEMENTALANALyZERwww.labmanager.com
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The flared end of this pump tubing allows the large sample capillary tubing to be inserted.
It can be difficult to insert the sample tube into the peristaltic pump tubing on your ICP-MS. This is particularly so if the peristaltic pump tubing has a small internal diameter (ID). An example is the pump tubing used for the internal standard which usually has an ID of 0.2 to 0.4mm and is incompatible with the sample tubing OD of 1.3mm.
Purchase your flared pump tubing direct from a distributor near [email protected] | 1.306.249.3000 | www.flaredtubing.com O
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