Metal doped keratin film standard for LA-ICP-MS determination of lead in hair samples

2011 ◽  
Vol 26 (3) ◽  
pp. 493-498 ◽  
Author(s):  
Pracha Cheajesadagul ◽  
Winai Wananukul ◽  
Atitaya Siripinyanond ◽  
Juwadee Shiowatana
Keyword(s):  
Icp Ms ◽  
Hair Samples ◽  
Metal Doped ◽  
Lead In Hair

scholarly journals DETERMINATION OF TOXIC, ESSENTIAL AND RELATIVELY ESSENTIAL ELEMENTS LEVEL IN ALPACA HAIR WITH USING OF DIFFERENT SAMPLING TYPES

2020 ◽  
Vol 21 (2) ◽  
pp. 54-63
Author(s):  
O.P. Ajsuvakova ◽  
◽  
C.A. Gómez ◽  
O.A. Skalnaya ◽  
◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Organic Compounds ◽  
Sodium Content ◽  
Essential Elements ◽  
Deionized Water ◽  
Hair Sampling ◽  
Icp Ms ◽  
Hair Samples ◽  
Plasma Mass Spectrometry

The method of inductive coupled plasma mass spectrometry (ICP-MS) was used for elemental analysis of alpaca hair. Various methods impact of hair sampling for analysis was evaluated with using deionized water and acetone. Sodium content decrease in the in hair samples washed with deionized water and Mg, Li, V, Ag, Cd, Ba level decrease in samples treated with acetone were found. The results can be explained by sodium attendance in the hair in the form of simple cations that are not bound to any organic compounds by strong bonds, while the results obtained for Mg, Li, V, Ag, Cd, Ba, suggest that the ions of these elements are connected with structural hair formations. Significant differences in the content of other macro- and microelements in alpaca hair treated with deionized water and acetone were not found.

Gender determination of caucasoid hair using image analysis

1993 ◽  
Vol 51 ◽  
pp. 216-217
Author(s):  
T.B. Ball ◽  
W.M. Hess
Keyword(s):  
Image Analysis ◽  
Cross Sections ◽  
Scalp Hair ◽  
The Body ◽  
Equivalent Diameter ◽  
Cross Sectional ◽  
Hair Samples ◽  
Length Width ◽  
Morphological Differences

It has been demonstrated that cross sections of bundles of hair can be effectively studied using image analysis. These studies can help to elucidate morphological differences of hair from one region of the body to another. The purpose of the present investigation was to use image analysis to determine whether morphological differences could be demonstrated between male and female human Caucasian terminal scalp hair.Hair samples were taken from the back of the head from 18 caucasoid males and 13 caucasoid females (Figs. 1-2). Bundles of 50 hairs were processed for cross-sectional examination and then analyzed using Prism Image Analysis software on a Macintosh llci computer. Twenty morphological parameters of size and shape were evaluated for each hair cross-section. The size parameters evaluated were area, convex area, perimeter, convex perimeter, length, breadth, fiber length, width, equivalent diameter, and inscribed radius. The shape parameters considered were formfactor, roundness, convexity, solidity, compactness, aspect ratio, elongation, curl, and fractal dimension.

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