scholarly journals Fast, Nondestructive, and Cost-Effective Methods to Detect Pesticide Residues: A Case Study of Several Repatriated Karuk Tribe Artifacts

2017 ◽  
Vol 31 (1-2) ◽  
pp. 23-33
Author(s):  
Rosene Salmo ◽  
Peter T. Palmer ◽  
Karuk Tribe
Keyword(s):  
Microwave Plasma ◽  
Cost Effective ◽  
Atomic Emission ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission Spectrometry ◽  
Spectrometry Analysis ◽  
Organic Pesticides

Abstract This study describes the use of three different nondestructive methods to determine whether or not nine artifacts belonging to the Karuk Tribe had been treated with common inorganic and organic pesticide agents. A portable X-Ray Fluorescence analyzer was used to estimate the concentrations of arsenic, mercury, and lead at two different locations on each artifact. Black beads on a necklace were found to contain 2.1% lead and 0.23% arsenic, which can be attributed to the natural composition of the beads. Leather on a drum mallet was found to contain 0.49% lead and 0.10% arsenic, which were due to the pigments used to decorate this item. Microwave Plasma-Atomic Emission Spectrometry analysis of swab samples taken from the surfaces of an elk horn, bow, and musical drum showed nondetectable levels of arsenic and lead. Gas Chromatography/Mass Spectrometry analysis of a second set of swab samples taken from the surface of each artifact showed nondetectable levels of p-dichlorobenzene, naphthalene, dichlorodiphenyltrichloroethane, and other common organic pesticides. These results suggest that these artifacts were not treated with pesticides for preservation purposes, and hence they can be handled, worn, and used as intended.

Electronic Computer Circuit Board Waste Leaching Toxicity Study

2013 ◽  
Vol 448-453 ◽  
pp. 625-629
Author(s):  
Xian Tao Shao ◽  
Wei Lv ◽  
Deng Xin Li
Keyword(s):  
Inductively Coupled Plasma ◽  
Atomic Emission ◽  
Circuit Board ◽  
Gas Chromatography Mass Spectrometry ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission Spectrometry ◽  
Inductively Coupled ◽  
Organic Matter Concentration ◽  
Leaching Toxicity ◽  
Board Test

Select the e-waste in the PC board as the research object, and through microwave-assisted digestion and flip Preparation leaching solution, respectively, using inductively coupled plasma atomic emission spectrometry (ICP-AES) and gas chromatography - mass spectrometry (GC-MS) analysis of the circuit board test results with HJ/T299 set forth in the various elements and organic matter concentration limits comparison shows that a computer circuit board has a leaching toxicity, is hazardous waste for the computer circuit boards harmless and resource provide a reliable theoretical basis.

Utilization of modern analytical techniques for the analysis of household generated greywater samples

2015 ◽  
Vol 6 (1) ◽  
pp. 47-53
Author(s):  
A. Szabolcsik ◽  
E. Baranyai ◽  
I. Bodnár
Keyword(s):  
Drinking Water ◽  
Elemental Concentration ◽  
Microwave Plasma ◽  
Analytical Techniques ◽  
Atomic Emission ◽  
Atomic Emission Spectrometry ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission ◽  
Plasma Atomic Emission Spectrometry ◽  
Modern Analytical

Detailed analysis of household generated greywater (GW) samples is an essential task for the design of treatment systems before reuse. In this paper modern analytical methods will be discussed, which were applied to determine the ionic and elemental concentration of different GW samples. Ion chromatography (IC) and Microwave plasma atomic emission spectrometry (MP-AES) methods were used to spoor the composition of GW samples. It was shown that from the IC results and from calculated parameters (Na ee% and SAR) the application of raw or treated GW flows for irrigation is controlled. According to the elemental concentration, GW samples from laundry/kitchen sink and dishwasher proved to be the most contaminated compared to drinking water, while the concentration of the measured elements did not elevate as significantly in GW samples from shower/bathtub.

A New Desolvation System for Use with Capacitatively Coupled Microwave Plasma and Inductively Coupled Plasma-Atomic Emission Spectrometry

1989 ◽  
Vol 43 (3) ◽  
pp. 425-430 ◽  
Author(s):  
H. Uchida ◽  
W. R. Masamba ◽  
T. Uchida ◽  
B. W. Smith ◽  
J. D. Winefordner
Keyword(s):  
Inductively Coupled Plasma ◽  
Microwave Plasma ◽  
Detection Limits ◽  
Atomic Emission ◽  
Atomic Emission Spectrometry ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission ◽  
Plasma Atomic Emission Spectrometry ◽  
Inductively Coupled ◽  
Pneumatic Nebulizer

A compact and highly efficient desolvation system with a pneumatic nebulizer was applied to capacitatively coupled microwave plasma and inductively coupled plasma-atomic emission spectrometry. Approximately 50% of the analyte (Mn) was introduced to the plasma, and 50 (CMP) and 16 (ICP) times improvement of the sensitivity could be achieved. In spite of slightly poorer stability caused by larger aerosol size, detection limits were 17 (CMP) and 10 (ICP) times superior to results achieved with conventional pneumatic nebulization.

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