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Di-n-heptyl phthalate
1x 1 m PEEK capillary
3-Dimethyldibenzothiophene
Oxide (dissolved by heating in H2O / HNO3)
EC HPLC guard column (analytical), NUCLEODUR 100-3 CN-RP, 3 µm, 4x2 mm [201000][MICROLAB] Connection 1 Female Luer lockFor 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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