✦ LIBER ✦

LC-GC analysis of the aromatics in a mineral oil fraction: Batching oil for jute bags

✍ Scribed by Grob, Konrad ;Biedermann, Maurus ;Caramaschi, Adrian ;Pacciarelli, Bruno

Publisher: John Wiley and Sons
Year: 1991
Tongue: English
Weight: 551 KB
Volume: 14
Category: Article
ISSN: 0935-6304
DOI: 10.1002/jhrc.1240140109

No coin nor oath required. For personal study only.

✦ Synopsis

Aromatics of a Cl5-CW mineral oil fraction, the "batching oil" used for producing jute fabrics, were analyzed for estimating the toxicity of oil transferred from jute bags to foods. Grouptype pre-separation according to ring systems occurred on a LC NH2 column with pentane and small additions of methanol as eluent. LC fractions were characterized by LC-GC-MS and quantitated by LC-GC-FID. The oil contained 23 YO aromatics and 1 YO "polars"; some 99.5 YO of the aromatics were alkylated.

📜 SIMILAR VOLUMES

Comprehensive two-dimensional GC after H

Comprehensive two-dimensional GC after HPLC preseparation for the characterization of aromatic hydrocarbons of mineral oil origin in contaminated sunflower oil

✍ Maurus Biedermann; Koni Grob 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 610 KB

## Abstract Many foods are contaminated with mineral oil at concentrations in the order of or above 10 mg/kg. Often, these mineral oils are of technical grade and contain around 20–30% aromatic hydrocarbons, as previously shown by an on‐line HPLC‐GC‐flame ionization detection method for determining

On-Line LC-GC for the Analysis of the Mi

On-Line LC-GC for the Analysis of the Minor Components in Edible Oils and Fats – The Direct Method Involving Silylation

✍ Artho, Anna ;Grob, Konrad ;Mariani, Carlo 📂 Article 📅 1993 🏛 John Wiley and Sons ⚖ 517 KB

## Abstract The previous on‐line LC‐GC method for the direct analysis of the minor components in oils and fats (without cleavage of esters) was modified: The free alcohols/sterols were silylated instead of acylated, and the LC fraction transferred to GC is widened to range from the beginning of the

On-line LC-GC transfer via a hot vaporiz

On-line LC-GC transfer via a hot vaporizing chamber and vapor discharge by overflow; increased sensitivity for the determination of mineral oil in foods

✍ Konrad Grob; Marianne Bronz 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 577 KB

## Abstract The modified LC‐GC transfer technique with concurrent eluent evaporation reduces losses of volatile components. The LC fraction is transferred by the LC pump. Evaporation occurs in a heated capillary into which a piece of wire is introduced. Vapors are discharged by overflow. This enabl