Spectrex Corporation articles

“Production chemicals used in subsea applications have to be produced to a high specification of cleanliness, typically to better than NAS 8 (or the equivalent SAE AS4059 specification). This is because subsea injection systems typically terminate in narrow bore control valves that are prone to blockage by even the smallest particulates. Measurement of these production chemicals is challenging due to the components often being highly acidic, alkaline or aromatic hydrocarbon based and th

For my research work, which concerns separation of liquid/liquid dispersions, I selected the Spectrex PC2200. It covers the whole range of droplet sizes which are of interest, i.e. from 0.5 to 100 microns. The procedure for analysis is very simple and results are obtained in less than a minute. This makes the Spectrex instrument very handy for use in the lab as well as for field measurements (A portable model, PC-2300, is available).

Initially I faced some problems with dilution of my

Particle toxicity in various water samples depends on the mixture of toxicants in each sample. Toxicity values for different samples can be expressed using the new metric: Particle Toxicity.

Use of the Spectrex PC-2000 was the instrument of choice in enumerating the particle concentrations for the calculation of the particle toxicity of drinking-water and reference toxicant suspensions. Generation of Particle Size Distribution Graphics with the PC-2000 also provided information which

Comments by an industrial hygiene supervisor in Texas

"The Spectrex PAS-500 is a great tool for collecting both personal and area air samples. I have yet to have a worker complain about having to wear the pump. The workers appreciate the drastic reduction of weight and size when compared to the traditional low volume pumps. The best advantage of the PAS-500 is the clip that holds the pump securely in the top pocket and eliminates the need for a long hose to connect the heavy low volum

Normally prospectors are totally reliant upon laboratory analysis to determine what a rock contains.

Obviously, the more a prospector knows the better and is less reliant upon others. However, because no one knows everything and the Earth is full of surprises it behooves a prospector to be as equipped with as many tools of the trade as possible.

Today, gizmos with flashing lights, dozens of levers/knobs and impressive gauges connected with bewildering battery of wires to high

Comments by major pharmaceutical company research scientist.

We`ve found the Spectrex to be a very useful tool in formulation and process development for parenteral products in cases where the volume of solution available is limited, and we are primarily interested either in 1) differences in relative numbers and sizes of particles when comparing various formulations or processing treatments, or 2) changes in relative numbers of particles with time. By being able to count particles no

Delamination, or the generation of glass flakes in vials used to contain parenteral drug products, continues to be a persistent problem in the pharmaceutical industry. To understand all of the factors that might contribute to delamination, a statistical design of experiments was implemented to describe this loss of chemical integrity for glass vials. Phase I of this study focused on the effects of thermal exposure (prior to product filling) on the surface chemistry of glass vials. Even though