![EC HPLC guard column (analytical), NUCLEODUR C18 HTec, 3 µm, 4x2 mm [86258][MICROLAB] 000 ppm solutions chemically stable](https://cdn.shopify.com/s/files/1/0296/2155/1241/products/HPLC_guard_column_EC_4-2_NUCLEOSIL_NUCLEODUR_NUCLEOSHELL_chromatography_c34ab741-06b0-487f-a664-8e16d57ccd54.jpg?v=1740396498)
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000 ppm solutions chemically stable for years in 1-10% HNO3 / LDPE container
CGSE10-500ML
Stable with all other metals
Trifluralin-d14 (di-n-propyl-d14)
72668-27-0
EC HPLC guard column (analytical), NUCLEODUR C18 HTec, 3 µm, 4x2 mm [86258][MICROLAB] 000 ppm solutions chemically stableFor 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