Direct quantitative determination of solid samples by laser Raman spectrometry
نویسندگان
چکیده
منابع مشابه
Direct Solid Sampling by Flame Atomic Absorption Spectrometry: Determination of Manganese in Coal Samples
Um novo sistema para análise direta de amostras sólidas por espectrometria de absorção atômica com chama é proposto como alternativa para a determinação de elementos traço em carvão. Para a demonstração do potencial do procedimento a determinação de manganês foi investigada. Amostras de carvão foram moídas e pesadas diretamente em recipientes de polietileno e transportadas na forma de um aeross...
متن کاملcontrol of the optical properties of nanoparticles by laser fields
در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...
15 صفحه اولDetermination of beryllium in solid samples by flame atomic absorption spectrometry after preconcentration on activated carbon.
It is generally supposed that the preconcentration procedure is used for the determination of metal concentrations under the sensitivity of the measurement method. This study showed that preconcentration is also need for the beryllium (Be) concentration over the sensitivity of atomic absorption spectrometry. For this purpose, a simple and selective method for the determination of Be in solid sa...
متن کاملDirect Determination of Selenium in Blood and Urine Samples by Platform Furnace Atomic Absorption Spectrometry
The problems encountered in platform AAS determinations of selenium in biological fluids were recently reported by Carnrick et al. [1]. The presence of phosphates produces a spectral interference for the selenium determination at 196.0 nm, avoided by using Zeeman background correction. On the other hand, Hoenig and Van Hoeyweghen show that spectral interference of phosphates in animal tissues m...
متن کاملSimultaneous Determination of Disinfection By-products in Water Samples from Advanced Membrane Treatments by Headspace Solid Phase Microextraction and Gas Chromatography-Mass Spectrometry
A headspace-solid phase microextraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS) method has been developed for the simultaneously determination of 20 disinfection by-products (DBPs) in water samples from reverse osmosis (RO) membranes. Selected compounds belong to different families including: trihalomethanes (THMs), halogenated acetonitriles (HANs), halogenated nitromethanes ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1979
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.28.12_t68