Results 11 to 20 of about 134,438 (336)

Application of atomic spectroscopy for trace element analysis of fruit juices: A review [PDF]

open access: yesBIO Web of Conferences
Trace elements are crucial for human nutrition, requiring their precise analysis in fruit juices to ensure product quality and assess contamination risks.
Hemachandra Pavithra   +2 more
doaj   +1 more source

Determination of four arsenic species in aquatic products by liquid chromatography-atomic fluorescence spectrometry

open access: yesShipin yu jixie, 2023
Objective: Four arsenic species of arsenic in aquatic products were analyzed using ultrasonic-assisted extraction combined with high performance liquid chromatography-atomic fluorescence spectrometry (HPLC-AFS).
LIU Zhenghua, LI Zhonghai
doaj   +1 more source

Effect of Temperatures on Determination of Arsenic in Water by Atomic Fluorescence Spectrometry

open access: yesYankuang ceshi, 2019
BACKGROUND The influence of the operating temperature on Hydride Generation-Atomic Fluorescence Spectrometry comes mainly from the hydride reaction and the drift of the instrument.
LIU Jing-long, WU Qiao-li
doaj   +1 more source

The Occurrence, Pathways, and Risk Assessment of Heavy Metals in Raw Milk from Industrial Areas in China

open access: yesToxics, 2021
This study evaluated chromium (Cr), arsenic (As), cadmium (Cd), and lead (Pb) contamination in raw milk from industrial areas in China, identified the possible pathways of heavy metals from the environment to raw milk, and made a risk assessment of the ...
Chuanyou Su   +8 more
doaj   +1 more source

Prospects in Analytical Atomic Spectrometry [PDF]

open access: yesRussian Chemical Reviews, v. 75, pp. 289-302 (2006). [Translated from Uspekhi Khimii, v. 75, pp. 322-338 (2006)], 2006
Tendencies in five main branches of atomic spectrometry (absorption, emission, mass, fluorescence and ionization spectrometry) are considered. The first three techniques are the most widespread and universal, with the best sensitivity attributed to atomic mass spectrometry.
arxiv   +1 more source

Accurate experimental determination of Gallium K- and L3-shell XRF fundamental parameters [PDF]

open access: yesJAAS, 2018, DOI: 10.1039/C8JA00046H, 2018
The fluorescence yield of the K- and L3-shell of gallium was determined using the radiometrically calibrated (reference-free) X-ray fluorescence instrumentation at the BESSY II synchrotron radiation facility. Simultaneous transmission and fluorescence signals from GaSe foils were obtained, resulting in K- and L3-shell fluorescence yield values ...
arxiv   +1 more source

Evaluation of Data Quality on the Detection of Heavy Metals in Soils by Atomic Absorption Spectrometry or Atomic Fluorescence Spectrometry and X-ray Fluorescence Spectrometry in Ecological Environment Monitoring

open access: yesYankuang ceshi, 2019
BACKGROUND In current ecological environmental monitoring, the standard methods used to determine the total contents of inorganic elements, such as heavy metals in soil, include atomic absorption spectrometry (AAS), atomic fluorescence spectrometry (AFS)
TIAN Zhi-ren   +5 more
doaj   +1 more source

The resonance fluorescence cascade of a laser-excited two-level atom [PDF]

open access: yesAdvances in Continuous and DiscreteModels 2023:15 (2023), 2022
The cascade of fluorescence photons by a two-level atom excited by coherent laser light is reviewed. The discussion emphasizes the random nature of resonance fluorescence and uses the distribution of delays between two successively emitted photons as the primary characterization of the process. Other characterizations such as photon counting and photon
arxiv   +1 more source

A novel selenocystine-accumulating plant in selenium-mine drainage area in Enshi, China. [PDF]

open access: yesPLoS ONE, 2013
Plant samples of Cardamine hupingshanesis (Brassicaceae), Ligulariafischeri (Ledeb.) turcz (Steraceae) and their underlying top sediments were collected from selenium (Se) mine drainage areas in Enshi, China.
Linxi Yuan   +5 more
doaj   +1 more source

Analysis of Four Arsenic Species in Different Types of Rice Based on Liquid Chromatography-Atomic Fluorescence Spectrometry

open access: yesLiang you shipin ke-ji, 2023
A fast analytical protocol for the simultaneous analysis of As(Ⅲ), As(Ⅴ), DMA and MMA in purple rice, red rice and common brown rice was established based on liquid chromatography-atomic fluorescence spectrometry. For the first time, three mobile phases (
YANG Huan   +3 more
doaj   +1 more source

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