Sem/eds analysis services in US right now? As indicated in the FTIR spectral comparison below, the suspect material showed a near perfect match for acetylsalicylic acid. Additionally, there was a small amount of dibasic phosphate present. It was determined that the material was likely acetylsalicylic acid with a phosphate binder – an aspirin. Therefore, from this analysis the suspect material in the bottle was likely a household aspirin tablet, broken apart and separated by the water. In order to confirm the identification, a few aspirin tablets from several common manufacturers were obtained, roughly ground, and soaked to allow for comparison. The optical morphology of the crystals, size range of the particles, association with the phosphate and FTIR spectrum all were consistent with the original suspect material. A report detailing the methods and findings in full narrative form was rendered to the client.
The unique properties of birefringence allow for the differentiation of fibers, minerals, ceramics, and other biological materials. Particles can therefore be identified and comparatively quantified, resulting in the characterization of the components of a sample. Complimentary optical techniques such as Nomarski/DIC, bright field and dark field imaging add to the amount of information our Optical Analysts can obtain from your samples. Additionally we have a range of light sources and filters to outfit our stereo microscopes for fluorescent microscopy.
Do you do any animal testing? No. Do you analyze any tissue samples or blood samples? No. We do not do any blood analyses and we are not set up to prepare tissue samples. What are some of the cool samples you have looked at under the scanning electron microscope? We have seen 10,000 year old Wolly Mammoth hair, meteorites, an artificial heart valve, civil war bullets, insulin pumps, rare colonial coins, a kidney stone, and a few things we can’t talk about. But some of the more mundane samples, like wood or salt crystals, have proven to be extremely interesting subjects to image. Explore more info at this link. MicroVision Laboratories, Inc. has been providing businesses, consultants and other testing laboratories with expert microscopy and analytical services since 2003. Our client base covers a broad spectrum of industries including semi-conductors, aerospace, electronics, biomedical, ceramics, optics, pharmaceuticals, mineralogy, metallurgy, thin films, environmental, membranes filtration and industrial hygiene.
Dust samples were analyzed using polarized light microscopy (PLM) to provide percentages of the particle types present in the samples. MVL was able to determine that there was significant loading of glass fibers in the dust samples with the likely source being contractor’s work in the attic which involved disturbing the fiberglass insulation. The image on the right shows a few distinct glass fibers with a binder material adhered to them, consistent with fiberglass insulation.
Close examination of any possible defects or voids was undertaken at higher magnification. The voids did not appear to create any structural or conductivity issues. Additionally, the formation and contiguity of intermetallic bonds between the contacts and solder were shown using a combination of EDS line scan elemental spectroscopy and elemental mapping. The SEM image and the EDS map to the left show the intermetallic layer between the copper wire and the tin/lead solder via the mixture of the red copper and the blue tin. See a few more details at https://microvisionlabs.com/.