The non-volatile method was found to be more performant and hence was selected for further quantitative work.
The observed range of the HQ/SO2 ratio (0.01−0.7) is consistent with preceding observations of volcanic gas at Aso volcano by direct sampling, a volatile trap method, and FT-IR spectroscopy.
We have monitored the HCl/SO2 ratio of Aso volcano by a volatile trap method (Noguchi and Kamiya, 1963; Goff et al., 1998; Witter et al., 2004), for nine years, during which time ash emissions occurred repeatedly.
The cold vapor technique was used for mercury and the volatile hydrides method for selenium.
But with our method, volatile memory remains unimpaired when unlocking the bootloader and we do not require root privileges on the phone.
Collectively, this study would lead towards developing a pressure-activated patch of microcapsules with encapsulated volatiles and the method to assess the patch efficacy.
The residual seaweed was dried for estimation of residual total solids, then ash and volatile solids (see Methods section).
In the case of copolymers not readily dissolved in water and volatile organic solvents, dialysis method is the most common method used for the encapsulation of poorly water soluble drugs [ 37, 39].
Contrary to all other validation approaches published so far in the context of β-carotene and CPs, our groups have jointly published two comprehensive papers providing full validation of a GC-EI-MS method for volatile CPs and an UHPLC-DAD-ESI-Orbitrap MS method for non-volatile CPs and β-carotene, with preceding off-line SPE for all analytes [ 111, 116].
Fourteen polycyclic aromatic hydrocarbons (PAHs) with different volatility were used as model compounds to investigate the method performance for volatile and semi-volatile compounds.
It was developed as a convenient method for volatile organic compounds in the early 1990s.
