automatic sample preparation Articles

  • Webinar: Sample Preparation for XRF, FTIR & more | Spectroscopy Guides

    Watch our webinar on sample preparation in the fields of FTIR, XRF and more. Will Campbell explores various techniques in this webinar, originally hosted live by Select Science. XRF spectroscopy and FTIR spectroscopy is covered, along with other uses for sample preparation equipment. Tips on sample preparation and then a Q/A session also features.  Equipment/supplies mentioned includes: ...


    By Specac Limited

  • XRF Sample Preparation Techniques: Pellets versus Loose Powder | Spectroscopy Guides

    We recently compared the effectiveness of loose powder against prepared pellets for the x-ray fluorescent spectroscopic analysis of cement. Some users choose to carry out XRF without pressing the sample into a pellet. Despite the extra time involved in sample pellet preparation, which ...


    By Specac Limited

  • XRF pellet preparation for mined mineral analysis

    Sample heterogeneity affects the accuracy and repeatability of many X-Ray Fluorescence (XRF) measurements. Consistent sample preparation is required for measurements that are fully representative of the whole sample composition. The mineral mining industry has a need for several different measurements at different stages of the recovery process, and the sample preparation required will vary. ...


    By Specac Limited

  • How to use an Automatic Hydraulic Press | Spectroscopy Guides

    This is a brief guide to the basics of using an automatic hydraulic press; namely the Specac Atlas Autotouch Press, often used for KBr pellet preparation, ...


    By Specac Limited

  • Continuous monitoring of BTEX and PAH using automatic thermal desorption-gas chromatography

    Polycyclic Aromatic Hydrocarbons (PAHs) are a group of over 100 different chemicals that are known to be formed typically during incomplete combustion of organic matter at high temperature. Their major sources in the atmosphere include industrial processes, vehicle exhausts, waste incinerations, and domestic heating emissions. Due to their carcinogenic/mutagenic effects, 16 PAHs are currently ...


    By Chromatotec Group

  • Continuous Monitoring of BTEX and PAH using Automatic Thermal Desorption-Gas Chromatography

    Polycyclic Aromatic Hydrocarbons (PAHs) are a group of over 100 different chemicals that are known to be formed typically during incomplete combustion of organic matter at high temperature. Their major sources in the atmosphere include industrial processes, vehicle exhausts, waste incinerations, and domestic heating emissions. Due to their carcinogenic/mutagenic effects, 16 PAHs are currently ...


    By Chromatotec Group

  • Continuous monitoring of polycyclic aromatic hydrocarbons using automatic thermal desorpition-gas chromatography

    Polycyclic Aromatic Hydrocarbons (PAHs) are a group of over 100 different chemicals that are known to be formed typically during incomplete combustion of organic matter at high temperature. Their major sources in the atmosphere include industrial processes, vehicle exhausts, waste incinerations, and domestic heating emissions. Due to their carcinogenic/mutagenic effects. 16 PAHs are currently ...


    By Chromatotec Group

  • Use of online nutrient monitoring for automatic aeration and nitrate recycle pump control

    The Northside Wastewater Treatment Plant (WWTP) in Kinston, NC was expanded and upgraded in 2006 for biological nutrient removal (BNR) to meet limits of 3 mg/L total nitrogen (TN) and 1 mg/L total phosphorus (TP). In addition to the traditional approach of controlling the blowers based on dissolved oxygen (DO) readings, the City decided to implement an aeration basin blower control system using ...

  • Analysis of Na, K, Ca and Mg in Mineralwater using the Microsampling Method

    Sodium, Potassium, Calcium, and Magnesium belong to the essential mineral substances in the human organism. These elements take influence in the generation of enzymes and hormones, control the osmotic pressure in tissues and body fluids and are important for the exchange procedures in the cell membranes. In this application, the control of Na, K, Ca and Mg in a variety of mineral waters has been ...

  • KBr pellet faults | Spectroscopy Guides

    Generally, it is easy to produce a good quality KBr pellet if a decent Evacuable Pellet Die is used correctly, in conjunction with an appropriate Hydraulic Press. However, some faults in the produced sample ...


    By Specac Limited

  • We analyzed cement using XRF | Spectroscopy Solutions

    The X-Ray Fluorescence (XRF) spectroscopic analysis of cement samples usually requires XRF pellet preparation using a hydraulic laboratory press such as the Atlas Manual Hydraulic Press and a powerful sample-grinding mill such as the P6 Planetary Ball Mill. ...


    By Specac Limited

  • Rikers Island UST design & environmental services

    Design and Permitting of the upgrade fourteen (14) underground diesel & No. 6 fuel oil storage tanks with a combined tankage of over 540,000 gallons for a Major Oil Storage Facility. Project includes subsurface investigation, installation of soil borings, groundwater monitoring wells, non-destructive ultrasonic and volumetric tightness testing of tanks, tank design rehabilitation including ...


    By GEA Engineering PC

  • Checklist for making XRF pellets | Spectroscopy Guides

    Sample preparation for XRF pellets The process of pressing sample pellets suitable for XRF spectroscopic measurement covers milling/grinding your sample to a suitable fineness, mixing the powdered sample with x-ray powder or similar binder, inserting the mixture into a pellet die and finally compressing the die at pressures between 15 and 40 tons. ...


    By Specac Limited

  • Design of a Large Calibration Chamber

    The design and operation of a conceptually simple, low-cost chamber for calibration of cone penetrometers and other in situ devices is described. The chamber weighs over 5500 kg and houses a 4400-kg soil sample that is 1.5 m in diameter and height. Operations in the chamber are automated using a self-equilibrating hydraulic insertion frame, a soil pluviation system for sand placement, a vacuum ...


    By ASTM International

  • What is X-ray powder? | Spectroscopy Guides

    What is XRF powder? Spectroscopy is an analytical technique used in diverse industries for sample characterisation, quality control, and contaminant detection. X-ray fluorescence spectroscopy (XRF) involves shining bright X-rays at a sample and measuring ...


    By Specac Limited

  • XRF plastics and polymers analysis | Spectroscopy Solutions

    Plastics are ubiquitous in modern life with polyethylene and polypropylene being two of the most commonly used. These plastics can be found in anything from plastic carrier bags to children’s toys, to thermoplastics and consumer products. Polyethylene and polypropylene are polymers produced from α-olefins which are polymerized using the high-pressure Ziegler–Natta process. The ...


    By Specac Limited

  • How Does a Hydraulic Press Work? | Interactive Guide

    A hydraulic press is a compression device that makes use of an exerted force placed upon a fluid, to create a resulting force according to Pascal's Law. It was actually invented by Joseph Bramah, so is also known as the Bramah Press. If diagrams do not animate, try reloading your browser. Microsoft ...


    By Specac Limited

  • Single-particle analysis and electron tomography

    Both single-particle analysis and electron tomography are special tools for the structural analysis of biological components by transmission electron microscopy. Single-particle analysis enables us to determine the structures of relatively large proteins and macromolecular complexes without crystallisation. Electron tomography is often used to visualise organelles and subcellular structures at ...


    By Inderscience Publishers

  • Latest innovative solutions for PAH & VOCs monitoring in air – Case study presentation

    Polycyclic Aromatic Hydrocarbons (PAHs) are a group of over 100 different chemicals that are known to be formed typically during incomplete combustion of organic matter at high temperature. Their major sources in the atmosphere include industrial processes, vehicle exhausts, waste incinerations, and domestic heating emissions. Due to their carcinogenic/mutagenic effects, 16 PAHs are currently ...


    By Chromatotec Group

  • XRF analysis for steel production | Spectroscopy Solutions

    Steel production is a highly technical process which requires careful control of the alloy constituents to achieve the best mechanical properties. Part of the steel making process involves the removal of slag. Slag is the remains of the smelted ore generated by high temperature metallurgical activity. Ores (e.g., Iron, copper, lead, and nickel) generally have unwanted minerals associated with ...


    By Specac Limited

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