Analysis of Biological Materials by Atomic Absorption Spectroscopy

Willis, J. B.

doi:10.1002/9780470110294.ch1

Cited by 78 publications

(6 citation statements)

References 92 publications

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“…Silica is the adsorbent mostly used. Other adsorbent candidates in use are: florisil (Harino et al, 1992), alumina (Dirkx and Adams, 1992), alumina-silica (Willis, 1965), amino and C 18 cartridges, florisil-alumina, and florisilsilica (Harino et al, 1992;Dirkx and Adams, 1992). In most of the methods applied to sediments that use GC-MS or GC-flame photometric detection (FPD), a desulfurization with activated copper following a clean-up is performed.…”

Section: An Overview Of Speciation Methods and Determination Techniqumentioning

confidence: 99%

“…Some authors used both the surrogate and IS. This allows for the calculation of the recovery of the substance added as surrogate and, on this basis, correction of the amount of the analytes recovered (Willis, 1965). The substances most commonly used as IS or surrogates are tripropyltin (TPT), tetrabutyltin (TBT), tetraphenyltin www.intechopen.com (TePeT), and triphenyltin (TPT).…”

Section: An Overview Of Speciation Methods and Determination Techniqumentioning

confidence: 99%

“…For the determination of cadmium (Cd), mercury (Hg), arsenic (As), and zinc (Zn), while an ion chromatography-hydride generation-atomic absorption (HG-AAS) procedure (Wade et al, 1988) has been used for speciation of As, Cd and Zn are usually determined using flame AAS spectrometry Maenpa et al, 2002), and Hg analyzed using the cold vapor technique (CVAAS) Willis, 1965). More recently, has used GC-FPD for the determination of tributyltin concentrations in the coastal water and freshwater sediments from both the Port Elizabeth and East London harbors in South Africa, which contributed to resources for building regulatory data in that part of the world.…”

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confidence: 99%

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Speciation Methods for the Determination of Organotins (OTs) and Heavy Metals (MHs) in the Freshwater and Marine Environments

Ndibewu¹,

McCrindle²,

Mokgalaka³

2012

Environmental Health - Emerging Issues and Practice

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Section: An Overview Of Speciation Methods and Determination Techniqumentioning

confidence: 99%

Section: An Overview Of Speciation Methods and Determination Techniqumentioning

confidence: 99%

mentioning

confidence: 99%

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Speciation Methods for the Determination of Organotins (OTs) and Heavy Metals (MHs) in the Freshwater and Marine Environments

Ndibewu¹,

McCrindle²,

Mokgalaka³

2012

Environmental Health - Emerging Issues and Practice

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“…A selection of other reviews on AAS that have appeared over the years are presented here. The review by Willis (1963), on analysis of biological materials by AAS, is an early review by a pioneer in the field. Similarly, the review by Delves (1987) on AAS in clinical analysis, is a review by a pioneer in AAS applied to clinical analysis.…”

Section: Determinative Methodsmentioning

confidence: 99%

Analytical Chemistry of Element Determination (Non‐Nuclear and Nuclear)

Ihnat¹

2004

Elements and Their Compounds in the Environment

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“…in several biological fluids in humans for many years by use of several methods but more recently by atomic absorption spectrophotometry and inductively coupled emission spectroscopy [10][11][12][13][14][15][16][17][18][19][20][21][22]. These measurements have usually been made in reference to physiological changes or pathological conditions in single biological fluids.…”

Section: Measurements Of Calcium and Magnesium Have Been Madementioning

confidence: 99%

Calcium and Magnesium Levels Change in Relationship to Variations in Usual Dietary Nutrient Intake

Henkin¹

2018

jnhfs

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Objective: Changes in nutrient intake induce changes in calcium and magnesium metabolism. However, studies dealing with these changes were usually performed by addition of one specific nutrient to initiate changes in either calcium or magnesium in only one biological fluid, usually blood plasma or urine. We were interested in evaluating changes in both calcium and magnesium levels in several biological fluids simultaneously in relationship to usual intake of a wide range of dietary nutrients since this type of study has not been previously performed. Methods: Calcium and magnesium in blood plasma, urine and saliva and magnesium in erythrocytes were measured by flame aspiration atomic absorption spectrophotometry in 253 subjects, 150 women and 103 men in relationship to their usual dietary intake of calcium, magnesium, sodium, potassium, phosphorus, carbohydrate, fat, fiber, protein, vitamin D, vitamin C and total calories. Dietary nutrient intake was calculated by careful, systematic analysis of all food and fluids taken over three typical days by performance of computer based dietary analysis. Results: Complex changes occurred in calcium and magnesium levels in some but not all biological fluids as usual dietary nutrient intake varied. As sodium, potassium and total calorie intake increased urinary calcium excretion increased. As sodium, potassium, vitamin D and protein intake increased urinary magnesium excretion increased. As sodium intake increased salivary magnesium decreased. Conclusions: These studies demonstrate that calcium and magnesium levels in blood plasma, urine, saliva and nasal mucus are altered following variations in the usual intake of several dietary nutrients. These results can assist in forming a nutritional foundation upon which variations in the usual dietary intake of several nutrients alter calcium and magnesium levels in several biological fluids.

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Analysis of Biological Materials by Atomic Absorption Spectroscopy

Cited by 78 publications

References 92 publications

Speciation Methods for the Determination of Organotins (OTs) and Heavy Metals (MHs) in the Freshwater and Marine Environments

Speciation Methods for the Determination of Organotins (OTs) and Heavy Metals (MHs) in the Freshwater and Marine Environments

Analytical Chemistry of Element Determination (Non‐Nuclear and Nuclear)

Calcium and Magnesium Levels Change in Relationship to Variations in Usual Dietary Nutrient Intake

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