Application Guide

Products for Gas Chromatography
Instrument Gas Requirement Purity Generator Required

GC-FID

Hydrogen for fuel gas

Zero Air for flame gas

Hydrogen for capillary carrier gas

Nitrogen for packed carrier gas

Nitrogen for make-up gas

UHP

Hydrocarbon-free

UHP

UHP, Zero grade

UHP, Zero grade

Hydrogen

Zero Air

Hydrogen

Zero Nitrogen

Zero Nitrogen

NG4-1
GC-FPD

Hydrogen for fuel gas

Zero Air for flame gas

UHP

Hydrocarbon free

Hydrogen

Zero Air

NG4-1
GC-NPD

Hydrogen for capillary gas

Nitrogen for make up gas

UHP

UHP, Zero grade

Hydrogen

Zero Nitrogen

NG4-1
GC-ECD

Nitrogen for carrier gas

Nitrogen for make up gas

UHP, Zero grade

UHP, Zero grade

Zero Nitrogen

Zero Nitrogen

NG4-1
GC-TCD Hydrogen as carrier gas UHP Hydrogen
NG4-1
GC-ATD Dry air purge Clean and dry air Clean Dry Air
NG4-1
GC-AED Nitrogen for carrier gas UHP, Zero grade Zero Nitrogen
NG4-1
GC-ELCD, HALL Hydrogen as reaction gas UHP Hydrogen
Products for LCMS Instruments
Instrument Gas Requirement Purity Generator Required

LCMS API/LCMS

APCI, ELECTROSPRAY, LCMS/MS,TOF

Air for nebulizer gas

Nitrogen for curtain and sheath shield gas

Clean and dry air, hydrocarbon free 99.5%

Clean Dry Air or Zero Air Nitrogen

Products for Spectroscopy
Instrument Gas Requirement Purity Generator Required

FT-IR

Sprectrometer

Purge gas for sample compartment, optics, air bearing and microscope

Clean dry, CO2 free

CO2 free air

NG4-1

NMR

Spectrometer

Air for lifting spinning and ejecting

Clean and dry air

Clean Dry Air

NG4-1

ICP

Spectrometer

Nitrogen or zero nitrogen for purge gas

99.99+%

Nitrogen or

Zero Nitrogen

NG4-1

AA

Spectrometer

Air for oxidant gas

Clean and dry air

Clean Dry Air

Products for Analyzers
Instrument Gas Requirement Purity Generator Required

TOC

Hydrogen for fuel gas

Zero Air for flame gas

Hydrogen for capillary carrier gas

Nitrogen for packed carrier gas

Nitrogen for make-up gas

UHP

Hydrocarbon-free

UHP

UHP, Zero grade

UHP, Zero grade

Hydrogen

Zero Air

Hydrogen

Zero Nitrogen

Zero Nitrogen

NG4-1
THA

Zero air for FID

Hydrogen for fuel gas

Hydrocarbon free

UHP

Zero Air

Hydrogen

NG4-1
DSC

Air for air shield

Clean and dry

Clean Dry Air

NG4-1
TGA

Nitrogen or dry air as furnace gas

Clean an dry air or high purity N2

Clean Dry Air or Nitrogen

NG4-1
TOD

Nitrogen for carrier gas

UHP, Zero grade

Zero Nitrogen

NG4-1
CO2 analyzer

Calibration air

Clean dry, CO2 free hydrocarbon free

CO2 free air

Products for other laboratory applications
Instrument Gas Requirement Purity Generator Required

Sample Prep Autosamplers

Nitrogen for solvent evaporation

Air for pneumatic controls

Nitrogen for sample injector

95% to 99%

Clean and dry

UHP, Zero grade

Nitrogen

Clean Dry Air

Zero Nitrogen

NG4-1
Circular Dishriosm

Nitrogen

UHP, Zero grade

Zero Nitrogen

NG4-1
ELSD Detector

Nitrogen

98%

Nitrogen

NG4-1
Particle sizing by laser diffraction

Clean and dry air for nebulizing gas

Clean and dry air

Clean Dry Air

Please select this link to download the data sheet in pdf format Application Guide