Essential Elements in Dry and Canned Butter Beans (Phaseolus limensis L.)

1989 ◽  
Vol 52 (3) ◽  
pp. 204-206
Author(s):  
ANTHONY LOPEZ ◽  
HARRIET L. WILLIAMS
Keyword(s):  
Atomic Absorption ◽  
Dry Weight ◽  
Atomic Absorption Spectrophotometry ◽  
Essential Elements ◽  
Weight Basis ◽  
Element Content ◽  
Absorption Spectrophotometry ◽  
Wet Weight ◽  
Process Element

Ten essential elements were determined in dry and canned butter beans (Phaseolus limensis L.) by atomic absorption spectrophotometry. Samples were taken at different stages during the canning process to determine where changes in element content occurred. The content of each sample was compared statistically to other samples taken within the process. Element retention, excluding chloride and sodium, ranged from 51 to 84% on a dry weight basis, and 14 to 24% on wet weight basis.

Essential Elements in Dry and Canned Chick Peas (Cicer arietinum L.)

1988 ◽  
Vol 51 (7) ◽  
pp. 574-576 ◽  
Author(s):  
ANTHONY LOPEZ ◽  
HARRIET L. WILLIAMS
Keyword(s):  
Atomic Absorption ◽  
Cicer Arietinum ◽  
Dry Weight ◽  
Atomic Absorption Spectrophotometry ◽  
Essential Elements ◽  
Weight Basis ◽  
Cicer Arietinum L ◽  
Absorption Spectrophotometry ◽  
Wet Weight ◽  
Process Element

Ten essential elements were determined in dry and canned chick peas (Cicer arietinum L.) by atomic absorption spectrophotometry. Samples were taken at different stages during the canning process to determine where changes in element content occurred. The content of each sample was compared statistically to other samples taken within the process. Element retention, excluding chloride and sodium, ranged from 12 to 127% on a dry weight basis and 4 to 45% on wet weight basis.

Essential Elements in Unprocessed and Processed Frankfurters

1982 ◽  
Vol 45 (8) ◽  
pp. 707-712 ◽  
Author(s):  
N. G. MARRIOTT ◽  
A. LOPEZ ◽  
H. L. WILLIAMS
Keyword(s):  
Atomic Absorption ◽  
Atomic Absorption Spectrophotometry ◽  
Essential Elements ◽  
Element Content ◽  
Absorption Spectrophotometry ◽  
Element Loss ◽  
Iron And Zinc

Content of 16 essential elements was determined in three kinds of frankfurters by atomic absorption spectrophotometry. The element content of frankfurter batter was compared with processed frankfurters. There were larger (P<0.05) amounts of sodium in beef; colbalt, manganese and sodium in chicken; and manganese, potassium and sodium in meat frankfurters (beef and pork) after processing. Chicken samples contained less (P<0.05) chloride and potassium after processing. All frankfurters studied were superior sources of iron and zinc and fair sources of potassium when compared to other foodstuffs. Element retention ranged from 80.9% to over 100%. Data suggest that processing had minimal effects on element loss.

Low K+ in Paphiopedilum leeanum leaf epidermis: implications for stomatal functioning

1977 ◽  
Vol 55 (4) ◽  
pp. 489-495 ◽  
Author(s):  
Sherman D. Nelson ◽  
James M. Mayo
Keyword(s):  
Dry Weight ◽  
Atomic Absorption Spectrophotometry ◽  
Weight Basis ◽  
Leaf Epidermis ◽  
Photometric Analysis ◽  
Abaxial Epidermis ◽  
Absorption Spectrophotometry ◽  
Stomatal Functioning ◽  
Low K ◽  
Stomatal Mechanism

Abaxial epidermal strips from leaves of Paphiopedilum leeanum were analyzed via sodium cobaltinitrite staining and atomic absorption spectrophotometry for the presence and location of potassium. On a dry weight basis K content of the abaxial epidermis was found to be 103 times less than has been reported in other species, and unlike other species no localization of K+ in guard cells of open stomata could be detected via the sodium cobaltinitrite stain for potassium.Flame photometric analysis of the mesophyll indicated that it contained normal amounts of K+ (about 1.87% on a dry weight basis). Analysis showed that the K+ content of the abaxial epidermis (0.032%) was considerably less than that of the mesophyll, a situation unlike previous reports for other species in which the epidermal concentration was found to be greater than the mesophyll. A process for exclusion of K+ from the abaxial epidermis is suggested, as is the lack of involvement of K+ as the major osmoticum in the stomatal mechanism of this species.

scholarly journals Analisis Kadar Ion Pb2+ Pada Kangkung Darat (Ipomea Reptans Poir) Yang Diberi Air Lindi Dari Tpa Sampah Bukit Pinang Samarinda

2017 ◽  
Vol 15 (1) ◽  
pp. 35
Author(s):  
Hamsina Hamsina ◽  
Bohari Yusuf ◽  
Erwin Erwin
Keyword(s):  
Atomic Absorption ◽  
Atomic Absorption Spectrophotometry ◽  
Absorption Spectrophotometry ◽  
Wet Weight ◽  
Stems And Leaves

The Research to determine the levels of Pb ion on swamp cabbage (Ipomoea reptans Poir) where each of media cropping given variation of leachate volume from TPA Bukit Pinang Samarinda for every 10 kg of soil has been carried out. Swamp cabbage was analyzed in the roots, stems and leaves at the age of 2 weeks to 4 weeks. The levels of Pb2+ ion was determined by dry destruction method, then measured by atomic absorption spectrophotometry. Pb2+ ion was accumulated on the ground kale plants. The highest levels of Pb2+ ion was contained in the roots of ground kale plants on media cropping which added 1.5 L of leachate at the age of 3 weeks of 2.0642 mg / kg wet weight. The lowest level of Pb2+ ion was contained in the leaves of control plants at the age of 2 weeks that was 0.0177 mg / kg wet weight.

Levels of hippocampal calcium and zinc following kindling-induced epilepsy

1985 ◽  
Vol 63 (2) ◽  
pp. 159-161 ◽  
Author(s):  
I. Mody ◽  
J. J. Miller
Keyword(s):  
Dentate Gyrus ◽  
Atomic Absorption ◽  
Granule Cells ◽  
Zinc Content ◽  
Dry Weight ◽  
Atomic Absorption Spectrophotometry ◽  
Absorption Spectrophotometry

Hippocampal calcium and zinc content was determined using atomic absorption spectrophotometry in control and commissural-kindled rats. In animals exhibiting 5–10 consecutive motor seizures hippocampal calcium was slightly elevated (356.7 parts per million (ppm), dry weight) but not significantly different from controls (329.8 ppm), whereas the amount of zinc was significantly higher (101.6 ppm) than in nonstimulated animals (88.3 ppm). These results are indicative of certain pathophysiological changes in kindled hippocampi, most likely localized to the granule cells of the dentate gyrus where the bulk of hippocampal zinc is confined.

scholarly journals A PROCEDURE FOR THE USE OF ATOMIC ABSORPTION SPECTROPHOTOMETRY IN QUANTITATIVE HISTOCHEMISTRY

1974 ◽  
Vol 22 (2) ◽  
pp. 104-109 ◽  
Author(s):  
THOMAS H. ROSENQUIST ◽  
JUDITH W. ROSENQUIST
Keyword(s):  
Atomic Absorption ◽  
Low Cost ◽  
Young Male ◽  
Dry Weight ◽  
Atomic Absorption Spectrophotometry ◽  
Male Rats ◽  
Precipitation Reaction ◽  
Colloidal Iron ◽  
Absorption Spectrophotometry ◽  
Ready Availability

In this quantitative histochemical study, tissues were sectioned, then stained with procedures that conferred a metallic precipitate. Sections were photographed, removed from the slides, air-dried and weighed and then dissolved in acid and the metal content analyzed by atomic absorption spectrophotometry. The stains used in this study were the Alcian Blue (copper phthalocyanin) critical electrolyte concentration procedure on sections of the heart and duodenum from young male rats, colloidal iron on sections of the kidney from adolescent and senescent rats, silver impregnation on sections of the kidney of adolescent and senescent rats and an adenosine triphosphatase lead precipitation reaction on sections of the liver, kidney and heart from adolescent and senescent mice. The objective data obtained by the use of atomic absorption spectrophotometry, reported as micrograms of metal per milligram of dry weight of tissue, allowed statistical analysis of any differences in stain intensity of metallic dyes or metal-precipitating histochemical reactions. Attributes of atomic absorption spectrophotometry which make it desirable for use in this application include accuracy, ease of operation, low cost and ready availability.

Analysis of Foods for Arsenic and Selenium by Acid Digestion, Hydride Evolution Atomic Absorption Spectrophotometry

1977 ◽  
Vol 60 (4) ◽  
pp. 813-825 ◽  
Author(s):  
Milan Ihnat ◽  
Hanford J Miller
Keyword(s):  
Atomic Absorption ◽  
Detection Limits ◽  
Dry Weight ◽  
Atomic Absorption Spectrophotometry ◽  
Transient Signal ◽  
Acid Digestion ◽  
Absorption Spectrophotometry ◽  
Inorganic As ◽  
Entrained Air ◽  
Reference Samples

Abstract A method based on acid digestion, hydride evolution atomic absorption spectrophotometry for estimating microgram and submicrogram quantities of As and Se in foods was developed and evaluated. Samples up to 3 g dry weight were digested with HNO3-HClO4-H2SO4. As and Se in aliquots of the digests were reduced with NaBH4 to volatile hydrides, using laboratory-constructed and commercially available generators. As and Se were estimated by transient signal atomic absorbance measurements as the hydrides were decomposed in an Ar-H2-entrained air flame. Recoveries of inorganic As and Se added at levels of 0.1—1.0 μg/g to a variety of foods ranged from 70 to 125%. Analyses of several standard reference samples indicated the method is capable of recovering native analytes. Detection limits for the determinative step and the method as a whole were as low as 5 and 25 ng, respectively, for both elements.

scholarly journals Content and Accumulation of Oxalic Acid in Edible Species of Xanthosoma.

1969 ◽  
Vol 69 ◽  
pp. 169-176
Author(s):  
Dolores Cuebas de Escabí ◽  
Arturo Cedeño-Maldonado
Keyword(s):  
Oxalic Acid ◽  
Atomic Absorption ◽  
Leaf Blade ◽  
Dry Weight ◽  
Atomic Absorption Spectrophotometry ◽  
Tissue Development ◽  
Progressive Reduction ◽  
Absorption Spectrophotometry ◽  
Edible Species ◽  
Different Tissues

A study was conducted to determine the content and accumulation of oxalic acid in tissues of three edible species of the genus Xanthosoma: X. caracu, X. atrovirens and X. violaceum. Oxalic acid determinations were performed by atomic absorption spectrophotometry. Significant differences were found among the species and tissues studied. Oxalate content was higher in leaf blade and petiole tissues and lower in the pulp of the cormels or rhizomes. Oxalate content in the rhizomes was lowest in X. violaceum and highest in X. caracu. Accumulation in different tissues was progressive and simultaneous with tissue development. No evidence of acid translocation was detected. Postharvest storage of rhizomes resulted in progressive reduction in oxalate content. In all samples analyzed throughout the study the oxalate content of cormels never exceeded 3% of their dry weight.

Analysis of Lead Heavy Metal (Pb) Contamination on Matte Lipstick Preparations for Sale in Banda Aceh City Aceh Market

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Rizki Andalia ◽  
Mulia Aria Suzanni ◽  
Rini Rini
Keyword(s):  
Heavy Metal ◽  
Atomic Absorption ◽  
Atomic Absorption Spectrophotometry ◽  
The Body ◽  
Permissible Limit ◽  
The Sun ◽  
Absorption Spectrophotometry ◽  
Pb Contamination ◽  
Body Organ ◽  
Banda Aceh

Lipstick or lip dye is a cosmetic dose that serves to coloring, decorative the lips, as a moisturizing material and protect the lips from exposure the sun to provide optimum results. Lipstick should not contain chemicals such as lead (Pb) because the Pb is a heavy metal that is very dangerous when continuously used on the skin, because it will be absorbed into the blood and attack the body organ causing the onset of disease. According to BPOM that the lead rate on the lipstick does not exceed the permissible limit of 20 mg/kg or 20 ppm.This research aims to know the levels contained in the samples are 4 brands of matte lipstick that are sold in the Aceh market in Banda Aceh City with the method of atomic absorption spectrophotometry (AAS). The results showed that on the 4 brands of lipstick matte contain heavy metal lead (Pb) with a rate still qualified allowed by BPOM  is samples A, B, C, and D, respectively at 0.24 ppm; 0.10 ppm; 2.87 ppm and 1.32 ppm, so that the 4 brands of lipstick matte are still used.

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