现代离子色谱技术及进展资料.ppt

* * * Loop=52 uL ppm 2.0mM NaHCO3 / 1 mM Na2CO3 761 * Loop=268 uL 2.0mM NaHCO3 / 1 mM Na2CO3 761 * Instrument: Metrohm Modular IC with 709 IC Pump 733 IC Separation Center 753 Suppressor Module for Post Column Delivery Bischoff Lambda 1010 UV/Vis Detector Sample Loop: 250uL Eluent: 250mM Ammonium Sulfate 100mM Ammonium Hydroxide Pump Flow: 1.5 mL/min Column: Cetac ICSep AN1 Column with Guard-Disc Technology PCR: 2mM DPC*, 10% Methanol, 1 N Sulfuric Acid * (DPC – 1,5 Diphenylcarbazide) Detection: Visible @ 530nM Detector Range: 0.02 Au Pressure: 6.1 M Pascal Actual Time of Analysis: 4 minutes Data Collection: Metrohm MetroData IC Net 2.0 Chromatography Data Management System Sample Preparation All samples prepared in NaOH to a Basic pH MDL: 1 ppb Cr+6 Detection:Visible @ 530nM Detector Range:0.02 Au Pressure:6.1 M Pascal Actual Time of Analysis:4 minutes Data Collection:Metrohm MetroData IC Net 2.0 Chromatography Data Management System Sample PreparationAll samples prepared in NaOH to a Basic pH * Journal of Chromatography-vol 919 2001 pgs 59-65 * Talk about phosphate Coke; cations in sports drinks * AN1 UV detection 520 nm PCR, detection limits ~200 ppt 1000 uL * 5 ppm standards 20 uL sample loop Supp 5 150 * 2 Fluoride,5 Acetate,5 Formate,3 Chloride,5 Nitrite,5 Bromide,5 Nitrate,10 Phosphate,10 Sulfate,5 Oxalate,10 Thiosulfate,10 Thiocyanate * Li-0.5 ppm, 1,1,1,1 K-5,5,5,5,5 20 uL sample loop C2 250 * 2 mM HNO3/3% Acetone Acetone used to improve peak shape; HNO3 is easy to prepare- similar to standard eluent used and simpler to prepare. Enhanced the shape of the tetramethylamine, trimethylamine; acetone shifted some of the peaks in 15 min and others in 5 minutes * * * 麦芽糖 麦芽三糖 甜菜蜜中的蔗糖 离子色谱在其他领域的应用 农业、化工、石油、电子、地质、医药、生物、能源 肥料中Cr+6 （农业） 热稳定性盐类（化工） Eluent: 3.5 mM Na2CO3/ 1 mM NaHCO3/ 10% Acetone/ 1 mM p-cyanophenol 无机阴离子 无机盐与有机酸 Eluent: 4.0 mM Carb/ 1.0 mM Bicarb/ 1.3 mM p-cyanophenol 乙醇胺、一价和二价