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Supplier: Electron Microscopy Sciences
Description: MAC X-ray Microanalysis standards are supplied as 33 m (<sup>1</sup>/<sub>4</sub>") diameter pressed pellets or metal foils, and are prepared from selected high purity elements and compounds to ensure interference free-spectra. They are suitable for use by experienced spectroscopists as well as staff training.

Minority or Woman-Owned Business Enterprise

Supplier: Thermo Scientific Chemicals
Description: Crystals for infrared spectroscopy, x-ray fluorescent screens, scintillation counters
Supplier: Electron Microscopy Sciences
Description: All MAC X-ray Microanalysis standards are suitable for electron-beam energy dispersive or wavelength dispersive X-ray microanalysis systems

Minority or Woman-Owned Business Enterprise

Supplier: Electron Microscopy Sciences
Description: All MAC X-ray Microanalysis standards are suitable for electron-beam energy dispersive or wavelength dispersive X-ray microanalysis systems. All of our standards are polished to a 0.25 micron diamond finish and carbon coated. They are supplied with fully authenticated certificates of analyses and a location map for standard identification.

Minority or Woman-Owned Business Enterprise

Supplier: Electron Microscopy Sciences

Minority or Woman-Owned Business Enterprise

Catalog Number: (76468-748)
Supplier: ELECTRON MICROSCOPY SCIENCE
Description: All MAC X-ray Microanalysis standards are suitable for electron-beam energy dispersive or wavelength dispersive X-ray microanalysis systems.


Supplier: Electron Microscopy Sciences
Description: All standards are suitable for electron-beam energy dispersive or wavelength dispersive X-ray microanalysis systems.

Minority or Woman-Owned Business Enterprise

Supplier: Electron Microscopy Sciences
Description: All MAC X-ray Microanalysis standards are suitable for electron-beam energy dispersive or wavelength dispersive X-ray microanalysis systems.

Minority or Woman-Owned Business Enterprise

Supplier: Electron Microscopy Sciences
Description: All MAC X-ray Microanalysis standards are suitable for electron-beam energy dispersive or wavelength dispersive X-ray microanalysis systems.

Supplier: Electron Microscopy Sciences
Description: All MAC X-ray Microanalysis standards are suitable for electron-beam energy dispersive or wavelength dispersive X-ray microanalysis systems

Minority or Woman-Owned Business Enterprise

Supplier: ELECTRON MICROSCOPY SCIENCE
Description: X-Ray Windows are the ideal substrates for x-ray microscopy and x-ray spectroscopy techniques. State-of-the-art manufacturing and expert engineering allow for competitive prices of these windows. Made in the USA, these X-Ray windows are entirely plasma cleanable to remove organic contamination. Flat, uniformly deposited films provide consistent backgrounds with low field-to-field variability and high x-ray transmission.

Supplier: Electron Microscopy Sciences
Description: MAC has developed multi-element blocks of reference materials suitable for the compilation of a reference library of Auger sensitivity factors when used with the Auger Electron Microscopy (AES). (Auger electron: one of the electrons ejected from an atom as a result of the internal conversion of its own X-ray in the auger effect. Auger effect: a process in which an atom singly ionized by emitting one electron with energy in the X-ray range instead of emitting the usual X-ray photon on recovery undergoes a transition in which a second electron is emitted).

Minority or Woman-Owned Business Enterprise

Supplier: MP Biomedicals
Description: Ammonium sulfide solution (aqueous ammonium sulfide) is a 20% solution in water. Ammonium sulfide is an inorganic salt with a sulfurous odor, which is commonly used in the food industry as a flavoring agent. The influence of ammonium sulfide treatment on (100)GaAs (gallium arsenide) surfaces has been studied by X-ray photoelectron spectroscopy (XPS) and reflection high-energy electron diffraction (RHEED). Its potential as an alternative to hydrogen sulfide for the transformation of activated amides to thioamides by thiolysis has been investigated.The reaction of ammonium sulfide with 3-hydroxy-2-butanone over a range of temperature has been reported to form various flavor compounds.
Catalog Number: (76439-544)
Supplier: ELECTRON MICROSCOPY SCIENCE
Description: Suspended germanium provides a unique calibration standard for x-ray energy dispersive spectroscopy. Since Ge is not typically found in TEM columns, the calibration samples provide a material that cannot be mistaken for instrument components and their signal peaks. The regime in which system peaks normally occur (2 to 9 keV and 11 to 20 keV) is devoid of peaks from the Ge.


Catalog Number: (H-4902.0001BA)
Supplier: Bachem Americas
Description: Anticoagulant and antithrombotic peptides. Please see also the product family 'Hirudin Fragments and Analogs', the inhibitors N-1065, N-1215, N-1260, N-1565, and N-1970, and the anticoagulant anisindione, Q-1085.



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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. If you need further assistance, email VWR Regulatory Department at Regulatory_Affairs@vwr.com
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This product is no longer available. Alternatives may be available by searching with the VWR Catalog Number listed above. If you need further assistance, please call VWR Customer Service at 1-800-932-5000.
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