Table of contents 1 Why is particle size important?
Particles fall in front of the
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- The decision process may be different if the instrument is being purchased for a specific application as opposed to a general analytical technique for
Particles fall in front of the zoom and basic cameras that capture digital images. BASIC CAMERA ZOOM CAMERA 27 | ADVANCE DISPERSION OPTIONS for the CAMSIZER X2 allow high speed dynamic image analysis or fine, sticky, or wet particles. 28 LA-960 LASER DIFFRACTION LA-350 LASER DIFFRACTION SZ-100 DYNAMIC LIGHT SCATTERING PSA300 IMAGE ANALYSIS CAMSIZER P4 IMAGE ANALYSIS CAMSIZER X2 IMAGE ANALYSIS ViewSizer 3000 MULTISPECTRAL NANOPARTICLE TRACKING ANALYSIS 1nm 1µm 1mm 10nm 10nm 0.3nm 0.1µm 0.5µm 20µm 0.8µm 15µm 5mm 8µm 1000µm 1000µm 30mm 8mm DYNAMIC RANGE OF THE HORIBA PARTICLE CHARACTERIZATION SYSTEMS The decision process may be different if the instrument is being purchased for a specific application as opposed to a general analytical technique for many possible samples. For specific application it makes sense to search the industry literature to determine if a particular technique is favored over others. If for example the application is liposomes and 90% of all literature found in this field is DLS, then the decision is simple. On the other hand, if this is the first particle size analyzer bought by a company for general purpose use, then flexibility and a wide dynamic range should be important factors. Sometimes the goal to buy a new instrument includes being able to correlate to existing data. Accomplishing this goal can range from easy to difficult. Just upgrading from an older to newer model diffraction analyzer could cause a change in results. The changes originate from many sources including differences in dynamic range, advances in algorithms, and mechanic improvements to samplers. Switching from an existing technique such as sieving to newer techniques like laser diffraction or dynamic image analysis could also lead to changes in results. Data from sieves are typically smaller than data from laser diffraction depending on the shape of the particles. The less spherical the particle, the greater the difference will likely be. The CAMSIZER dynamic image analyzer has multiple approaches built into the software to facilitate data matching with sieves. As a general rule, data can be manipulated to approach existing results, but understanding this issue during the selection process can ease the implementation of a new technique. tải về 7.54 Mb. Chia sẻ với bạn bè của bạn:
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