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A NEW MULTI-SPECTRAL THRESHOLD NORMALIZED DIFFERENCE WATER INDEX (MST-NDWI) WATER EXTRACTION METHOD – A CASE STUDY IN YANHE WATERSHED
Water Extraction MST-NDWI Small Linear River Remote Sensing Yanhe Watershed
2018/5/17
Accurate remote sensing water extraction is one of the primary tasks of watershed ecological environment study. Since the Yanhe water system has typical characteristics of a small water volume and nar...
Dissolved ion analyses of stream water from bamboo forests: Implication for enhancement of chemical weathering by bamboo
weathering rate plagioclase dissolved ions bamboo stream water
2017/4/11
Dissolved ion analyses of stream water were conducted monthly in three catchments of varying bamboo coverage of
similar geological setting for one year. We found that the concentration of dissolved S...
Development of a Simple and Low-cost Device for Fluorometric Determination of Selenium in Water Samples
Simple Low-cost Device Fluorometric Determination Selenium Water Samples
2010/9/13
A portable spectrofluorometer device comprising an ultraviolet LED (380 nm) as a light source, an LED driver, a microsyringe as a cell, an optical fiber cable, a CCD spectrometer and a personal comput...
Application of a Dynamic Reaction Cell (DRC) ICP-MS in Chromium and Iron Determinations in Rock, Soil and Terrestrial Water Samples
Application of a Dynamic Reaction Cell Chromium Iron Determinations Rock
2010/9/15
Despite environmental and geochemical interests, Cr and Fe have been left beyond the reach of determinations by ICP-MS due to severe interferences originating from Ar. The applicability of a dynamic r...
Chemiluminescent ELISA for the BTEX Determination in Water and Soil
Chemiluminescent BTEX Determination Water and Soil
2010/9/14
An indirect competitive chemiluminescence enzyme-linked immunosorbent assay (CL-ELISA) for the determination of benzene, toluene, ethylbenzene, and ortho-, meta-, para-xylenes (BTEX) in soil and water...
Determination of Water Content in Organic Solvents by Naphthalimide Derivative Fluorescent Probe
Determination Water Content in Organic Solvents Naphthalimide Derivative Fluorescent Probe
2010/9/13
A new fluorescence dye, N-amino-4-(2-hydroxyethylamino)-1,8-naphthalimide (AHN), based on 4-bromo-1,8-naphthalic anhydride was synthesized as a fluorescence probe for determining water content in orga...
Analyses of Non-steroidal Anti-inflammatory Drugs in Environmental Water Samples with Microemulsion Electrokinetic Chromatography
Non-steroidal Anti-inflammatory Drugs Environmental Water Samples Microemulsion Electrokinetic Chromatography
2010/9/13
In this study, a microemulsion electrokinetic chromatography (MEEKC) was used to analyze ten non-steroidal anti-inflammatory drugs (NSAIDs) in water samples. The type and ratio of organic modifiers we...
Flame Atomic Absorption Spectrometry Determination of Trace Amounts of Nickel Ions in Water Samples after Ligandless Ultrasound-assisted Emulsification Microextraction
Flame Atomic Absorption Spectrometry Determination Trace Amounts Nickel Ions
2010/9/17
In the present work, a new ligandless-ultrasound-assisted emulsification microextraction (LL-USAEME) method was developed for preconcentration trace amounts of nickel as a prior step to its determinat...
High Frequency Spectroscopic Study of the Bound State of Water in PEG–H2O System during Heating from Frozen State
High Frequency Spectroscopic Study the Bound State of Water in PEG–H2O System Frozen State
2010/9/17
The bound state of water in PEG (polyethylene glycol)–H2O systems was studied by using HFS and DSC methods. Samples with the mixing ratios EO:H2O = 1:1 (a) and 1:10 (b), where EO indicates the ethylen...
On-line Vapor-Phase Generation Followed by Fourier-Transform Infrared Spectrometry for the Quantitative Analysis of Water-Soluble Penicillin G in Pharmaceutical Formulations
Vapor-Phase Fourier-Transform Infrared Spectrometry Quantitative Analysis Water-Soluble Penicillin G Pharmaceutical
2010/9/20
The combination of vapor-phase generation (VPG) and Fourier-transform infrared (FTIR) spectrometry was performed as an alternative analytical technique for the determination of water-soluble penicilli...
Flow-Injection On-line Electrochemical Separation/Determination of Ions Using a Two-Step Oil/Water-Type Flow Cell System
Flow-Injection On-line Electrochemical Separation/Determination a Two-Step Oil/Water-Type Flow Cell System
2010/9/19
A flow system for electrochemical separation and detection of ions was constructed by connecting two oil/water (O/W)-type flow cells, in which a long polarizable O/W interface was formed at the inner ...
Determination of Nitrobenzene in Water and Ice Samples Collected from the Songhua River after an Explosion of a Petrochemical Plant and Investigation on Enclosing Behavior of Nitrobenzene into Ice
Nitrobenzene Ice Samples Collected the Songhua River an Explosion of a Petrochemical Plant and Investigation f Nitrobenzene
2010/9/20
In this study, nitrobenzene in water and ice samples collected from the Songhua River after the explosion of a petrochemical plant was determined by GC/MS. The results showed that nitrobenzene was de...
Determination of Cadmium in Water Samples by Liquid Electrode Plasma Atomic Emission Spectrometry after Solid Phase Extraction Using a Mini Cartridge Packed with Chelate Resin Immobilizing Carboxymethylated Pentaethylenehexamine
Cadmium in Water Samples Liquid Electrode Plasma Atomic Emission Spectrometry Solid Phase Extraction
2010/9/20
Solid phase extraction using a mini cartridge packed with 22 mg of chelate resin immobilizing carboxymethylated pentaethylenehexamine was successfully utilized for separation/preconcentration of cadm...
Solid-Phase Extractors Based on 8-Aminoquinoline and 2-Aminopyridine Covalently Bonded to Silica Gel for the Selective Separation and Determination of Calcium in Natural Water and Pharmaceutical Samples
Solid-Phase Extractors 8-Aminoquinoline 2-Aminopyridine Covalently Bonded Silica Gel the Selective Separation Calcium
2010/9/20
Two new silica-gel phases were produced directly via the chemical interaction of 3-chloropropyltrimethoxysilane modified silica gel with 8-aminoquioline, phase I and 2-aminopyridine, phase II under re...
A Novel Hydrophobic Task Specific Ionic Liquid for the Extraction of Cd(II) from Water and Food Samples as Applied to AAS Determination
A Novel Hydrophobic Task Specific Ionic Liquid the Extraction of Cd(II) Water Food Samples AAS
2010/9/20
Hydrophobic task specific ionic liquid (TSIL) functionalized 2-mercaptobenzothiazole (MBT) was synthesized and characterized by NMR and HRMS. The capability of TSIL-MBT for the selective separation a...