Extensive testing is performed on oilfield chemicals before and after being selected for use in production operations.  Some tests include  seta potential to test clay stabilizers or general surface charges and HPLC to determine the molecular weight distribution of polymers.

atomic absorption spectroscopy measuring equipment atomic absorption spectroscopy measuring equipment, close up of front apparatus atomic absorption spectroscopy measuring equipment, close up of apparatus on end

Atomic absorption spectroscopy (AAS) is a spectro-analytical procedure for the quantitative determination of chemical elements employing the absorption of optical radiation (light) by free atoms in the gaseous state. In analytical chemistry the technique is used for determining the concentration of a particular element (the analyte) in a sample to be analyzed.

gas chromatography measuring machine, front view

Gas chromatography (GC), is a common type of chromatography used in analytical chemistry for separating and analyzing compounds that can be vaporized without decomposition. Typical uses of GC include testing the purity of a particular substance, or separating the different components of a mixture (the relative amounts of such components can also be determined). In some situations, GC may help in identifying a compound. In preparative chromatography, GC can be used to prepare pure compounds from a mixture.

high performance liquid chromatography separator equipment

High-performance liquid chromatography (formerly referred to as high-pressure liquid chromatography), HPLC, is a chromatographic technique used to separate the components in a mixture, to identify each component, and to quantify each component. It relies on pumps to pass a pressurized liquid and a sample mixture through a column filled with a sorbent, leading to the separation of the sample components.

machine measuring zeta potential

Zeta potential is a scientific term for electro kinetic potential in colloidal systems. The significance of zeta potential is that its value can be related to the stability of colloidal dispersions (e.g., multivitamin syrup). The zeta potential indicates the degree of repulsion between adjacent, similarly charged particles (the vitamins) in dispersion. For molecules and particles that are small enough, a high zeta potential will confer stability, i.e., the solution or dispersion will resist aggregation. When the potential is low, attraction exceeds repulsion and the dispersion will break and flocculate. So, colloids with high zeta potential (negative or positive) are electrically stabilized while colloids with low zeta potentials tend to coagulate