Clarus 690/VGA-101. The VGA-101 is a universal detector with an expanded wavelength spectrum of 120 – 430 nm that provides unique selectivity for complex structures such as polyaromatic hydrocarbons (PAHs). The ability to operate the VUV detector as high as 430 °C allows the analysis of high boiling point compounds. Set up for ASTM 8267 for biojet fuels specification ASTM D1655. Also capable of ASTM D8071.