Frontier perkin elmer ftir nir

The structure of the purified compound was determined based on spectral data recorded on a Frontier Perkin-Elmer FTIR/NIR (Perkin-Elmer Inc., Norwalk, CT, USA) spectrophotometer and a Bruker NMR 600 MHz Cryo-Probe instrument that could perform 1-D and 2-D NMR measurements (Bruker, Germany). ESIMSs were recorded on a Bruker Daltonics micrOTOF-Q 86 (direct infuse + ve.m). Isolation was carried out by radial chromatography using round glass plates on a Merck Kieselgel 60 PF₂₅₄ (art. no. 7749), and the profile was analysed using aluminium sheets measuring 20 × 20 cm on a Merck TLC silica gel 60 F₂₅₄ with a thickness of 0.25 mm (art. no. 5554) with UV light detection (254 nm) or CeSO₄ spraying followed by heating.

The structures of the purified compounds were determined based on spectral data recorded on a Frontier Perkin-Elmer FTIR/NIR (Perkin-Elmer Inc., Norwalk, CT, USA) spectrophotometer and a Bruker NMR 600 MHz and 700 MHz Cryo-Probe instrument that could perform 1-D and 2-D NMR measurements (Bruker, Berlin, Germany). ESIMS were recorded on a Bruker Daltonics micrOTOF-Q III (positive polarity). Isolation was carried out by radial chromatography using round glass plates on a Merck Kieselgel 60 PF₂₅₄ (art. no. 1.07749.1000) and the profile was analyzed using aluminum sheets measuring 20 × 20 cm on a Merck TLC silica gel 60 F₂₅₄ with a thickness of 0.25 mm (art. no. 1.05554.0001) with UVP light detection at 254 nm (UVGL-58 Handheld UV Lamp, USA) or CeSO₄ spraying, followed by heating.