A better polymeric HPLC column (in efficiency, symmetry and pH range)


	Example Chromatograms

	Acetophenone
	Amoxicilin
	Ampicillin
	Benzoic acid
	Carbinoxmaine
	Cephalexin
	Cephradine
	Chlorpheniramine
	Codeine
	Codeine
	Cytochrom C (tryptic)
	Cytochrom C
	Dextromethorphan
	Dextromethorphan
	Diazepam
	Dihydralazine
	Diltiazem
	Diphenhydramine (Cap)
	Diphenhydramine (Gel)
	Ephedrine
	Furomside
	Hydrochlorothiazide
	Lysozyme
	Methoxy benzylamine
	Methyl benzoate
	Methyl paraben
	Myglobin (Tryptic)
	Myglobin
	Naphthalene
	Norfloxacin
	Nucotus expectorant
	Pain killer
	Parabens
	Peptides
	Phenoylpropanolamine
	Phenylpropanolamine
	Promethazine
	Promethazine
	Promethizaine
	Propyl paraben
	Pseudoephedrine
	Pseudoephedrine
	Pyrimidine
	Ribonuclease
	Sulfadiazine
	Sulfamethoxazole
	Tetrahydrozoline
	Toluene

Pain killer (tablet)

In the test below, OPH^® RP-L21 column is compared with other leading polystyrene reversed phase HPLC column. Improved column efficiency and peak shape for tailing compounds on OPH^® RP-L21 column lead to better chromatography for more accurate and sensitive methods.

Pain killer (tablet)

Next Result

OPH^® RP-L21 column
150 mm x 4.1 mm

Leading polystyrene column
(H company)
150 mm x 4.1 mm

Separation Conditions
Mobile phases	35% ACN/65% Water (with 0.1% TFA)
Flow	1.0 mL/min
Injection	20 µL
Detection	UV 220 nm
Temperature	room temperature
Retention time	minute


	© 2004, Organicphase Inc. Tel 973-886-6148 Fax 973-242-1113