Recommended for Boron NMR [contains < 0.01 ppm Boron] and/or UV catalyzed reactions in the region above 190nm [90%T @ 190nm]. Quartz NMR tubes are also useful when extreme thermal shock resistance is required.
Recommended for Boron NMR [< 0.1 ppm Boron] and/or UV catalyzed reactions in the region above 210nm [90%T @ 210nm].