The author of 《Acid-selective mass spectrometric analysis of petroleum fractions》 were Omari, Isaac; Zhu, Haoxuan; McGarvey, G. Bryce; McIndoe, J. Scott. And the article was published in International Journal of Mass Spectrometry in 2019. Electric Literature of C8H8Br2 The author mentioned the following in the article:
Naphthenic acids are cycloaliphatic carboxylic acids that are naturally-occurring constituents of petroleum. Anal. mass spectrometric methods aimed at carboxylic acids tend to involve deprotonation to generate carboxylate anions, but also produce detectable ions of every acidic component of the mixture A charged tag carbodiimide is able to facilitate detection of model naphthenic acids as well as low levels of naphthenic acids in petroleum fractions via tandem electrospray ionization mass spectrometry. This approach exhibits greater selectivity than deprotonation, and a picture of the acidic components of a petroleum fraction emerges after a quick derivatization step and without the use of chromatog. separation The method may prove useful in the context of characterizing the naphthenic acid components of complicated matrixes. In the experiment, the researchers used 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Electric Literature of C8H8Br2)
1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact. Electric Literature of C8H8Br2
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary