七种阴离子混标,50ML/瓶
商家询价 上海希言科学仪器有限公司
TG-624 30m x 0.25mm x 1.4m
针阀(空气)
使用压力:0.42MPa流量范围:0-450ml/min
商家询价 北京普瑞分析仪器
TG-5MS 60m x 0.25mm x 0.25m
Edwards 45 Vacuum Pump Oil 1 L Bottle
S225/S275 Sample w/Valco Connect. Needle
THGA Std Graphite Tubes w/End Cap Pkg.20
Lead 1 000 μg/mL 2% HN03 Pure 125 mL
NaOH 淋洗液罐
Quartz Injector 0.80 mm ID Optima 8x00