Particle Counters Articles

  • Kinetics of lead and copper removal from oil-field brine by potential sorption

    The present study investigates the kinetics of lead and copper removal from oil-field brine by potential sorption. A population balance equation, coupled with a mass balance equation, was used in the estimation of kinetic parameters. Metal removal was performed by potential sorption of lead and copper through CaCO3 precipitates induced by the reaction of Na2CO3 and ...


    By IWA Publishing

  • Impact of heating method on the flocculation process using thermosensitive polymer

     Flocculation process based on water soluble polymers as flocculating agents is still intensively researched nowadays, despite the introduction of these materials about fifty years ago. There is a need to gain the full control of this process in order to obtain high efficiency and strictly define products. For that purpose new solutions are proposed like stimuli-responsive macromolecules. In ...


    By IWA Publishing

  • The Right Choice to Maintain Hotel Rooms

    Maintaining high-traffic areas in hospitality settings, such as hotel rooms, can be a really overwhelming task. After all, impeccable maintenance of hotel rooms encompasses a multitude of applications, including disinfecting the toilets, scrubbing floors, cleaning counters, deodorizing mattresses, and more. As more and more people continue to use the facilities on a daily basis, it can be harder ...


    By Daimer Industries Inc.

  • Preparation, characterisation and catalytic activity of gold nanoparticles supported on Co
    3
    O
    4

    Gold nanoparticles supported on Co3O4 (Au:Co3O4 = 1:25) were prepared by co–precipitation method. The co–precipitate was studied by using a thermal analysis (Differential Thermal Analysis - DTA and a Differential Thermal Gravimetric Analysis - DTGA). The ...


    By Inderscience Publishers

  • Vapor Steamers Make School Surfaces Spotlessly and Germ Free

    The cleaning capabilities of vapor steam cleaner machines are renowned all over the world. For this reason, cleaning professionals in charge of maintaining high-traffic areas now trust the cleaning power of steam vapor machines to help them accomplish their job with minimum effort and without compromising on the quality of cleaning results. Let us take the case of maintaining schools for ...


    By Daimer Industries Inc.

  • Hepa this Hepa that, is there such thing as a true Hepa vacuum?

    We all see it, the big Hepa sticker on the side so we automatically believe the vacuum must be a Hepa rated vacuum, right? - Sorry the chances are the Vacuum would never pass a Certified D.O.P test. Just because a vacuum has a Hepa filter doesn't make it a Hepa vacuum, many factors have to be taken into account such as: The Hepa Filter needs to be sized according to the airflow ...


    By Hypervac Technologies

  • Continuous mixing of confectionary ingredients

    Subject: Continuous feeding-mixing system Clients: Systems commissioned for high volume, quality food manufacturers   Description: Feeding and mixing of confectionary ingredients, chocolate and beverage powders for continuous production processes   Product characteristics: Diverse range of ingredients with differing flow properties such as sugar, pectin, citric acid, cocoa, ...


    By Gericke

  • Oil-In-Water Analysis. Verification of Particle Counter results by optical microscopy

    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 ...


    By Spectrex Corporation

  • Utility of the laser particle counter for determination of drinking-water toxicity

    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. ...


    By Spectrex Corporation

  • The Spectrex particle counter used in study of pharmaceutical glass delamination.

    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 ...


    By Spectrex Corporation

  • A high-performance aerosol concentrator for biological agent detection

    Introduction Particle sampling from ambient air is a well-developed technology described in many texts (e.g., Vincent 1989; Willeke and Baron 1993; Hinds 1999). However, there are many cases in which the concentration of airborne particles is so low that it becomes necessary to sample for extended periods of time to collect enough mass for chemical or biological characterization of the ...


    By MSP Corporation

  • Size-controlled preparation of ruthenium nanoparticles using polyaromatic amine-containing compounds as hydrogenation nanocatalyst precursors

    Ruthenium nanoparticles stabilised by polyaromatic amine-containing compounds (aminoethylcarbazole, aminoanthracene and aminoanthraquinone) were synthesised in solution using three different preparative methods, namely modified polyol reduction, borohydride reduction and phase-transfer method, respectively. Their product yields, particle sizes and size distributions were compared accordingly. The ...


    By Inderscience Publishers

  • Particulate matter: Comparison between two bus fuels

    AbstractParticulate matter is a dangerous polluting. Particulate health effects depend from two factors: mass concentration and chemical-physical particles composition, as chemical marker, size and morphology. Particulate health risk factor is due to particles penetration in respiratory system. The aim of this work is based on the physical characterization of particulate matter emission from two ...


  • Ammonium fixation in selected California decomposed granites

    Abstract  Revegetation on disturbed, low organic matter content, decomposed granite (DG) substrates are limited by low plant-available moisture and nitrogen. Data from a single DG site in northern California, USA, showed that a significant fraction of the ammonium from fertilizers or organic matter mineralization was fixed into silicate interlayer positions. To evaluate the broader relevance of ...


    By Springer

  • A Comparison of Methods to Determine the Particle Size

    There currently exist a multitude of techniques to determine particle size distributions. However, in assessing the particle size distribution (PSD) of solids in a stormwater sample, the number of suitable techniques is considerably reduced due to the limited quantity of solids in a typical stormwater sample. The electrical sensing zone method (ESZ), which utilizes the Coulter Principle, and ...


  • European On-Line Particle Mass Spectrometry

    An international workshop on European On-line Particle Mass Spectrometry (PMS) was held 29th-30th of November 2005 at the JRC in Ispra, Italy. The main goals of the Workshop were: 1) To get together all European scientists involved in the field of PMS 2) To review the latest scientific progress on the field of PMS, with particular emphasis on:a. New instrumentationsb. Data analysisc. ...


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