Occurrence, mobility, leaching, and recovery of rare earth elements and trace elements in Sohagpur Coalfield, Madhya Pradesh, India

There are several international regulations regarding trace elements. The use of ICP-MS for their determination is usually a difficult task, especially when Hg is one of the target elements.

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Comparison of the Mineral and Nutraceutical Profiles of Elephant Garlic (Allium ampeloprasum L.) Grown in Organic and Conventional Fields of Valdichiana, a Traditional Cultivation Area of Tuscany, Italy

Biology ◽

10.3390/biology10101058 ◽

2021 ◽

Vol 10 (10) ◽

pp. 1058

Author(s):

Stefano Loppi ◽

Riccardo Fedeli ◽

Giulia Canali ◽

Massimo Guarnieri ◽

Stefano Biagiotti ◽

...

Keyword(s):

Trace Elements ◽

Rare Earth ◽

Rare Earth Elements ◽

Water Content ◽

Human Health ◽

Soluble Sugars ◽

Allium Ampeloprasum ◽

Icp Ms ◽

Essential Trace Elements ◽

Reference Plant

In the Valdichiana area (Tuscany, Italy) an ancient native landrace of elephant garlic (Allium ampeloprasum L.), locally known as “Aglione della Valdichiana”, has long been cultivated. The aim of this study was to check whether there are differences in the mineral and nutraceutical profiles of the Aglione della Valdichiana cultivated conventionally and organically. Based on the analysis by ICP-MS of a wide array of major, minor, essential, and non-essential trace elements as well as rare earth elements, and the evaluation of the content of polyphenols, flavonoids, antioxidants, soluble proteins, soluble sugars, and starch, as well as the weight and water content, it was concluded that differences in the mineral and nutraceutical profiles of organically and conventionally grown bulbs were very limited. Only a statistically (p < 0.05) higher concentration of Cd (+2620%), Co (+113%), Mn (+55%), Rb (+180%), and Sb (+180%), as well as glucose (+37%) in conventionally cultivated bulbs emerged. Cadmium was the only element slightly higher than in the “reference plant,” but with a negligible risk (three orders of magnitude lower) for human health based on consumption. It is concluded that we failed to find evidence of healthier food or a higher nutraceutical quality for organically cultivated elephant garlic.

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Identifying Correlation of Coal Seams in the Tien Hai Area, Northern Vietnam by Using Multivariate Statistic Methods

Inżynieria Mineralna ◽

10.29227/im-2021-02-11 ◽

2021 ◽

Vol 1 (2) ◽

Author(s):

The Hung KHUONG ◽

Phuong NGUYEN ◽

Thi Cuc NGUYEN ◽

Nhu Sang PHAM ◽

Danh Tuyen NGUYEN

Keyword(s):

Trace Elements ◽

Rare Earth ◽

Coal Seam ◽

Rare Earth Elements ◽

Major And Trace Elements ◽

Coal Seams ◽

Multivariate Statistic ◽

Northern Vietnam ◽

Coal Deposits ◽

Indicator Elements

In northern Vietnam, the Tien Hai area is considered a high potential area of coal deposits. Twohundred fifty-six geochemical coal samples of 13 cores in the Tien Hai area investigate coal seams andcoal deposits to identify the correlation of coal seams. According to the statistical method and clusteranalysis of geochemical samples, the results indicate that the Mg, V, As, Ca, Zn, Cr, Co, K, Na, Sr, Fe,Ge, Re, U, Mo, Th, and Ga elements are good indicator elements of the major and trace elements in coal.Most of them comply with the normal or lognormal distribution rules. Besides, the Yb, Sc, Ho, Er, Tm,Lu, Y, Tb, Pr, Dy, and Sm elements are also good indicator elements for rare earth elements in the region.Therefore, the selected elements are used to identify the correlation of the coal seams in the Tien Hai area.Based on the similarity degree between studied objects, the results of grouping boreholes in coal seamsshow that the correlation of coal seam TV2-11 is suitable and acceptable, the coal seams TV3-6a, TV3-6b, and TV3-6c can be grouped into the coal seam TV3-6. These results present that the models can helpstudy geochemical coal samples and identify the correlation of the coal seams in the Tien Hai area.Additionally, the statistical analysis shows a remarkable degree to determine the correlation of the coalseams. Geochemical coal data can help to evaluate the indicator elements of the major, trace elements,and rare earth elements in coal seams and coal rashing of adjoining and pillar rocks in the Tien Hai area,northern Vietnam.

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