Skip to Content
MilliporeSigma
  • Integration of a contactless conductivity detector into a commercial capillary cassette. Detection of inorganic cations and catecholamines.

Integration of a contactless conductivity detector into a commercial capillary cassette. Detection of inorganic cations and catecholamines.

Journal of chromatography. A (2003-04-11)
Pasi S Vuorinen, Matti Jussila, Heli Sirén, Sami Palonen, Marja-Liisa Riekkola
ABSTRACT

A contactless conductivity detector integrated into the capillary cassette of Agilent (3D)CE equipment is described. The detector is user-friendly, compact and easily modified. The UV detector of the (3D)CE equipment is available parallel with the contactless conductivity detector increasing the detection power. Two electrolyte solutions, 2-(N-morpholino)ethanesulfonic acid-histidine solution (20 mM, pH 6.0) and ammonium acetate (10 mM, pH 4.0), were used as the separation media for inorganic cations and organic catecholamines, respectively. The detection limit for all metal cations except barium was under 0.5 mg/l, and that for four catecholamines was ca. 10 mg/l. This last value was the same order of magnitude as achieved with parallel UV detection.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
MES hydrate, BioUltra, ≥99.5% (T)
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 mg
Please contact Customer Service for Availability
₩192,140
Sigma-Aldrich
MES hydrate, ≥99.5% (titration)
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 mg
Please contact Customer Service for Availability
₩192,140
Sigma-Aldrich
MES hydrate, BioPerformance Certified, suitable for cell culture, ≥99.5%
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 mg
Please contact Customer Service for Availability
₩192,140
Sigma-Aldrich
MES hydrate, ≥99.5% (titration), pH 2.5-4.0 (0.5 M in H2O), BioXtra
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 mg
Please contact Customer Service for Availability
₩192,140
Sigma-Aldrich
MES sodium salt, BioPerformance Certified, suitable for cell culture
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 mg
Please contact Customer Service for Availability
₩192,140
Sigma-Aldrich
MES, low moisture content, ≥99% (titration)
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 mg
Please contact Customer Service for Availability
₩192,140
Sigma-Aldrich
MES sodium salt, BioReagent, ≥99% (titration), crystalline
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 mg
Please contact Customer Service for Availability
₩192,140
Sigma-Aldrich
MES sodium salt, ≥99% (titration)
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 mg
Please contact Customer Service for Availability
₩192,140
SAFC
MES sodium salt
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 mg
Please contact Customer Service for Availability
₩192,140
Sigma-Aldrich
MES solution, BioUltra, for molecular biology, 0.5 M in H2O
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 mg
Please contact Customer Service for Availability
₩192,140