FLUORINE AND MULTI-ELEMENT ANALYSIS OF MUSHROOM SAMPLES BY MEANS OF PIXE SYSTEM

We have measured concentration of multi elements including fluorine in mushrooms collected in Iwate prefecture, Japan. As a result, it was confirmed that the sample preparation method, which was established for the plant samples, is applicable to the mushroom samples and the elemental concentration was obtained in good accuracy and reproducibility. Moreover, it becomes clear that the mushroom takes a specific element selectively depending on its species, and it is found that to analyze various kinds of mushrooms is of great use as a way of monitoring environmental pollution. Fluorine concentration is found to be 7-68 ppm in the mushroom samples. However, clear correlation of fluorine and other elements was not observed in each sample in this study.

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QUANTITATIVE AND QUALITATIVE ANALYSIS OF FLUORIDE AND MULTI ELEMENTS OF SHARK TEETH BY PIXE

International Journal of PIXE ◽

10.1142/s0129083508001466 ◽

2008 ◽

Vol 18 (03n04) ◽

pp. 123-129

Author(s):

S. SAKURAI ◽

R. ASAKAWA ◽

F. HIROTA ◽

T. SATO ◽

K. SERA ◽

...

Keyword(s):

Elemental Concentration ◽

Good Accuracy ◽

Preparation Method ◽

Fluorine Concentration ◽

X Ray Diffraction ◽

Sample Preparation Method ◽

X Ray ◽

Shark Teeth ◽

South Of Japan ◽

Near Future

Biomineralization has two types, biologically induced mineralization (BIM) and biologically controlled mineralization (BCM). Shark teeth is a typical representative of BCM. We have measured concentrations of fluorine and multi elements in shark teeth collected in the south of Japan. As a result, it was confirmed that the sample preparation method, which was established for the biological samples, is applicable to the shark teeth samples and the elemental concentration was obtained in good accuracy and reproducibility. Moreover, we clarified that the shark teeth is composed of Fluorapatite by the combination with X-ray Diffraction. Fluorine concentration is found to be 5500 µg/g in the shark teeth. We have 100 samples of Shark teeth and are planning on reporting the findings of a study with larger samples in the near future.

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ELEMENTAL ANALYSIS OF VEGETABLES ON THE MARKET — Comparison with Wild Plants

International Journal of PIXE ◽

10.1142/s0129083506000988 ◽

2006 ◽

Vol 16 (03n04) ◽

pp. 209-219 ◽

Cited By ~ 7

Author(s):

J. ITOH ◽

Y. SAITOH ◽

S. FUTATSUGAWA ◽

K. SERA

Keyword(s):

Elemental Concentration ◽

Essential Elements ◽

Wild Plants ◽

Wild Plant ◽

Measured Concentration ◽

Specific Element ◽

Growing Period ◽

Growing Environment ◽

Iwate Prefecture ◽

Cu And Zn

We have measured concentration of multi elements in vegetables on the market and a wild plant gathered around Nishina Memorial Cyclotron Center in Iwate prefecture by means of PIXE. Elemental concentration in vegetables cultivated by spraying mineral-rich waters was also analyzed. As a result, it is found that the mineral-supplying vegetables abundantly contain essential elements for body such as K , Ca , Fe , Cu and Zn in comparison with ordinary ones. With regard to a wild plant, concentration of essential elements such as Ca , Cu and Zn shows no clear difference in comparison with that in commercially available one of the same kind, while that of toxic elements such as Cr and Pb is relatively higher. Moreover, it is suggested that the wild plant has a certain property of concentrating a specific element depending on its growing period. The relation between elemental concentration in the plants and that in their growing environment, such as water and soil, was also examined. It is also suggested that elemental concentration in vegetables reflects elemental constituent not only of the soil but also of the sprayed water as well as of the fertilizer.

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APPLICATION OF A POWDERED-INTERNAL-STANDARD METHOD TO PLANT AND SEAWEED SAMPLES

International Journal of PIXE ◽

10.1142/s0129083505000271 ◽

2005 ◽

Vol 15 (01n02) ◽

pp. 27-39 ◽

Cited By ~ 16

Author(s):

J. ITOH ◽

S. FUTATSUGAWA ◽

Y. SAITOH ◽

F. OJIMA ◽

K. SERA

Keyword(s):

Liquid Nitrogen ◽

Standard Method ◽

Elemental Concentration ◽

Good Accuracy ◽

Preparation Method ◽

Internal Standard ◽

Essential Elements ◽

Internal Standard Method ◽

Research Fields ◽

Good Agreement

A preparation method making use of liquid nitrogen combined with a powdered-internal-standard method has been established for seaweed and plant samples, whose elemental concentration has been attracting attention in various research fields. It is found that a powdered-internal-standard method developed by us is applicable to the powdered samples treated with liquid nitrogen with good accuracy and reproducibility. The results were compared with those obtained by direct-powder method and by chemical-ashing method and good agreement was obtained. In addition, it is found that the whole sample of large quantities was almost uniformized by this preparation method. Moreover, it becomes possible to obtain concentrations of all the concerned elements including iodine, chlorine and bromine, which are essential elements in the fields of life-sciences and are difficult to be analyzed by the chemical-ashing method. It is expected that the application to other biological samples is also promising.

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A new sample preparation method for crude or fuel oils by mineralization utilizing single reaction chamber microwave for broader multi-element analysis by ICP techniques

Fuel ◽

10.1016/j.fuel.2017.05.084 ◽

2017 ◽

Vol 206 ◽

pp. 64-79 ◽

Cited By ~ 12

Author(s):

Weihang Yang ◽

John F. Casey ◽

Yongjun Gao

Keyword(s):

Sample Preparation ◽

Preparation Method ◽

Reaction Chamber ◽

Sample Preparation Method ◽

Element Analysis ◽

Fuel Oils ◽

Multi Element Analysis ◽

Single Reaction

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ELEMENTAL ANALYSIS OF EDIBLE PLANTS IN NATURAL ENVIRONMENT: Trace Elements in Wild Plants

International Journal of PIXE ◽

10.1142/s0129083507001174 ◽

2007 ◽

Vol 17 (03n04) ◽

pp. 119-127 ◽

Cited By ~ 2

Author(s):

J. ITOH ◽

Y. SAITOH ◽

S. FUTATSUGAWA ◽

K. ISHII ◽

K. SERA

Keyword(s):

Toxic Elements ◽

Elemental Concentration ◽

Essential Elements ◽

Wild Plants ◽

Measured Concentration ◽

Iron Copper ◽

Soil Activity ◽

Relationship Of ◽

The Relationship ◽

Iwate Prefecture

We have measured concentration of multi elements in wild plants collected in Iwate prefecture, Japan. It is found that wild plants contain essential elements such as iron, copper and zinc in the same degree or more in comparison with those in vegetables on the market. It is also found that wild plants contain toxic elements such as chromium and lead in the same degree or less in comparison with vegetables on the market. We took the soils together with the wild plants in nine representative spots and analyzed elemental concentration in them in order to examine the relationship of elemental concentration between plants and soils. Although elemental concentration in each soil has distinguished features, which in wild plants grown on the soil does not directly reflect that in the soil. It is expected that elemental concentration in wild plants is influenced by various factors such as chemical state of existing elements in the soil, pH of the soil, activity of microorganism in the soil, and many other factors.

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Comparison of 795 nm and 265 nm femtosecond and 193 nm nanosecond laser ablation inductively coupled plasma mass spectrometry for the quantitative multi-element analysis of glass materials

Journal of Analytical Atomic Spectrometry ◽

10.1039/c4ja00030g ◽

2014 ◽

Vol 29 (8) ◽

pp. 1345 ◽

Cited By ~ 31

Author(s):

Masaki Ohata ◽

Daniel Tabersky ◽

Reto Glaus ◽

Joachim Koch ◽

Bodo Hattendorf ◽

...

Keyword(s):

Mass Spectrometry ◽

Laser Ablation ◽

Inductively Coupled Plasma ◽

Nanosecond Laser ◽

Element Analysis ◽

Inductively Coupled ◽

Nanosecond Laser Ablation ◽

Plasma Mass Spectrometry ◽

193 Nm ◽

Multi Element Analysis

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Geographic determination of coffee beans using multi-element analysis and isotope ratios of boron and strontium

Food Chemistry ◽

10.1016/j.foodchem.2013.07.082 ◽

2014 ◽

Vol 142 ◽

pp. 439-445 ◽

Cited By ~ 34

Author(s):

Hou-Chun Liu ◽

Chen-Feng You ◽

Chiou-Yun Chen ◽

Yu-Ching Liu ◽

Ming-Tsung Chung

Keyword(s):

Isotope Ratios ◽

Element Analysis ◽

Coffee Beans ◽

Multi Element Analysis

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SIMULTANEOUS MULTI-ELEMENT (INCLUDING FLUORINE) ANALYSIS OF VARIOUS BIO-MEDICAL SAMPLES

International Journal of PIXE ◽

10.1142/s0129083505000489 ◽

2005 ◽

Vol 15 (03n04) ◽

pp. 169-180 ◽

Cited By ~ 4

Author(s):

K. SERA ◽

T. TERASAKI ◽

J. ITOH ◽

S. FUTATSUGAWA ◽

Y. SAITOH ◽

...

Keyword(s):

Toxic Elements ◽

Elemental Concentration ◽

Urine Analysis ◽

Arsenic Concentration ◽

Measuring System ◽

Clinical Samples ◽

Fluorine Concentration ◽

Titanium Concentration ◽

Quantitative Analyses ◽

Contaminate Environment

We have measured fluorine concentration in samples taken from humans, such as sweat, saliva, snivel and tear in addition to hair, nail and urine, together with those of other elements by means of a three-detector measuring system. Fluorine has been known as one of the most toxic elements as well as arsenic, lead, mercury and cadmium which contaminate environment over the wide area. This system allowed us to discuss about fluorine concentration related to other elements'. A standard-free method established by us has been applied to quantitative analyses of these samples. By means of these methods, quantitative analysis becomes possible for samples of less than 1mg or 1μl and it is quite suited to tear, snivel and sweat. As one of the conclusion, sweat, snivel and tear give useful information in addition to the samples which have been traditionally analyzed. It is found that titanium concentration in a body is well estimated by analyses of sweat, snivel and saliva, arsenic concentration can be estimated by sweat analysis in addition to urine analysis, and nickel is well evaluated by sweat and tear. In this way, it is required to estimate elemental concentration in a human body by measuring various clinical samples. Especially, correlation between fluorine and arsenic is found in a few bio-medical samples.

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