Part No: P110Issued year: 2014File size: 0.25mbFile type: pdf
Corrosion costs the petroleum industry an estimated $1.3 billion in non-productive time, materials and labor annually. Imidazolines prepared from fatty acids and amines are a widely-used class of chemical corrosion inhibitor, due to excellent performance and ease of handling. However, commercial imidazolines are actually mixtures of several different chemical compounds, and the relative proportions of these species can have a large impact on both corrosion inhibition and product physical properties. The absence of gold standard analytical methods to characterize the active ingredients in imidazoline formulations limits the understanding of the chemistry of these materials. It is for this reason that a SPE-LC-MS method was developed to supplement the chemical information afforded by bulk testing / wet chemistry methods. It is anticipated that this method will have significant impact in the formulation of new corrosion inhibitors for oilfield applications as well as the quality control of finished products in manufacturing.
Part No: PPS577Issued year: 2019File size: 1.03mbFile type: pdf
The Biotage® VacMaster™ Disk is a unit for performing manual, disk-based extractions designed for high productivity laboratories. This unit is an excellent first step for labs interested in moving from liquid-liquid extraction (LLE) to solid phase extraction (SPE) for sample preparation in the environmental, food and beverage, and agriculture industries.
Part No: AN920Issued year: 2019File size: 0.3mbFile type: pdf
This application note describes the use of the Biotage® VacMaster™ Disk to extract n-hexane-extractable materials (HEM) from wastewaters per EPA Method 1664B. The procedure outlined in this document was used to generate a minimum level of quantitation (ML) and an initial demonstration of capability (IDC). Data for those studies is presented here.
Part No: AN118-HOR.V.1Issued year: 2017File size: 0.48mbFile type: pdf
Hexane extractable material (HEM), also known as Oil & Grease extraction is a simple water quality measurement. The measurement can be used to assess pollution for compliance or as a measure of influent contamination to protect a waste treatment plant from levels that might cause malfunction.