VA HPLC guard column (analytical), NUCLEOGEL SUGAR Na, 8-10 µm, 21x4 mm Filling quantity - 2/2g 70-200) for Mass spectrometry

70-200) for Mass spectrometry

Thallium 100 mg/l for ICP-MS

which among others also contains diethanolamine and propanolpyridine (this test mixture is separately available)

Volume 50 mL Syringe Type Gastight Syringe Series 1000 Termination PTFE Luer Lock (TLL) Needle Metal (N) or Kel-F Gauge No Needle Included Point Style No Needle Included Needle Length No Needle Included Fluid Path Borosilicate glass

Filling material

VA HPLC guard column (analytical), NUCLEOGEL SUGAR Na, 8-10 µm, 21x4 mm Filling quantity - 2/2g 70-200) for Mass spectrometryFor protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary