scholarly journals High-performance liquid chromatography of metal .ALPHA.,.BETA.,.GAMMA.,.DELTA.-tetrakis(4-carboxyphenyl)porphine complexes following preconcentration by solvent extraction with tributyl phosphate.

1994 ◽  
Vol 43 (10) ◽  
pp. 751-755 ◽  
Author(s):  
Tadao OKUTANI ◽  
Mitsuru SASAKURA ◽  
Akio SAKURAGAWA ◽  
Nobuharu TAKAI
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Solvent Extraction ◽  
Tributyl Phosphate ◽  
High Performance ◽  
Gamma Delta ◽  
Alpha Beta

Methods for simultaneous determination of 29 legacy and insensitive munition (IM) constituents in aqueous, soil-sediment, and tissue matrices by high-performance liquid chromatography (HPLC)

2021 ◽  
Author(s):  
Bobbi Stromer ◽  
Rebecca Crouch ◽  
Katrinka Wayne ◽  
Ashley Kimble ◽  
Jared Smith ◽  
...  
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Solvent Extraction ◽  
Environmental Protection Agency ◽  
High Performance ◽  
Solid Phase ◽  
Degradation Products ◽  
Direct Injection ◽  
High Water ◽  
Hplc Method

Standard methods are in place for analysis of 17 legacy munitions compounds and one surrogate in water and soil matrices; however, several insensitive munition (IM) and degradation products are not part of these analytical procedures. This lack could lead to inaccurate determinations of munitions in environmental samples by either not measuring for IM compounds or using methods not designed for IM and other legacy compounds. This work seeks to continue expanding the list of target analytes currently included in the US Environmental Protection Agency (EPA) Method 8330B. This technical report presents three methods capable of detecting 29 legacy, IM, and degradation products in a single High Performance Liquid Chromatography (HPLC) method with either ultraviolet (UV)-visible absorbance detection or mass spectrometric detection. Procedures were developed from previously published works and include the addition of hexahydro-1-nitroso-3,5-dinitro-1,3,5-triazine (MNX); hexahydro-1,3-dinitroso-5-nitro-1,3,5-triazine (DNX); hexahydro-1,3,5-trinitroso-1,3,5-triazine (TNX); 2,4-diamino-6-nitrotoluene (2,4-DANT); and 2,6-diamino-4-nitrotoluene (2,6-DANT). One primary analytical method and two secondary (confirmation) methods were developed capable of detecting 29 analytes and two surrogates. Methods for high water concentrations (direct injection), low-level water concentrations (solid phase extraction), soil (solvent extraction), and tissue (solvent extraction) were tested for analyte recovery of the new compounds.

Study on Gasoline Combustion Dust with ASE and HPLC

2013 ◽  
Vol 750-752 ◽  
pp. 1852-1854
Author(s):  
Shu Jun Liu ◽  
Kun Feng ◽  
Hao Nan Xu ◽  
Ying Wang
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Solvent Extraction ◽  
Extraction Method ◽  
High Performance ◽  
Accelerated Solvent Extraction ◽  
Extraction Time ◽  
Efficient Extraction ◽  
Optimum Extraction

The gasoline combustion dusts was analyzed by accelerated solvent extraction-high performance liquid chromatography(ASE-HPLC) in this paper. The optimum extraction conditions were that extraction time was 30min, temperature was 120°C and the pressure was 100Mpa. It is a efficient extraction method for a laboratory to quickly extract gasoline combustion dust samples.

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