![EC HPLC guard column (analytical), NUCLEODUR PolarTec, 3 µm, 4x2 mm [201900][MICROLAB] Stability: 2-100 ppb levels stable](https://cdn.shopify.com/s/files/1/0296/2155/1241/products/HPLC_guard_column_EC_4-2_NUCLEOSIL_NUCLEODUR_NUCLEOSHELL_chromatography_ffd577b9-cb84-47fe-a370-2e2f3c1f7c8a.jpg?v=1740396494)
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Stability: 2-100 ppb levels stable for 75+ days when mixed with equivalent levels of all other elements including the precious metals (where chloride is present) when in 1% HNO3 / LDPE container
362049-53-4
3 reels of 5 m length and 7 mm width in one plastic box
CGNA1-30ML
Agilent/Tekmar SOLAtek 72
EC HPLC guard column (analytical), NUCLEODUR PolarTec, 3 µm, 4x2 mm [201900][MICROLAB] Stability: 2-100 ppb levels 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
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