IonPac AS21 陰離子交換色譜柱 The IonPac AS21 是一款氫氧根體系陰離子交換色譜柱，用于快速分離飲用水中痕量的高氯酸鹽，離子色譜與質譜/質譜檢測器聯(lián)用結果更好。該柱符合U.S.EPA 331.0標準。 For fast analysis of trace perchlorate in drinking water prior to detection with MS/MS
The AS21 hydroxide-selective anion-exchange column is specifically designed for determination of trace perchlorate in drinking water prior to MS/MS detection. The capacity and selectivity enable fast analysis of perchlorate at low μg/L concentrations.The AS21 is the specified column in US EPA Method 331.0.
• Fast separation of perchlorate prior to MS/MS detection • Optimized for methylamine or hydroxide mobile phases
• Specified column for US EPA Method 331.0
• Optimum capacity: 45 μeq per column （2 × 250 mm）
• Operates at ambient or elevated temperatures
• Compatible with organic solvents
The AS21 2 × 250 mm column format was specifically developed for MS/MS compatibility to allow use of volatile mobile phases such as methylamine.
