Evaluation of triacid and dry ashing procedures for determining potassium, calcium, magnesium, iron, zinc, manganese, and copper in plant materials

Sahrawat, K. L.; Kumar, Gulshan; Rao, Jayasimha

doi:10.1081/css-120002380

Cited by 85 publications

(54 citation statements)

References 3 publications

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“…Nitrogen and P in the digests were analysed using an auto-analyser (Skalar SAN System, AA Breda, Netherlands), and K in the digests was analysed using an atomic absorption spectrophotometer (SavantAA, GBC Scientific Equipment, Braeside, VIC, Australia) 33 . Zinc in plant samples was determined by digesting them with tri-acid mixture, and Zn in digests was analysed using atomic absorption spectrophotometer 34 . Total S, B and metal concentrations in plant samples were determined by inductively coupled plasma emission spectrophotometer (ICP-AES) (Prodigy High Dispersion ICP, Teledyne Leeman Labs, Hudson, New Hampshire, USA) in the digests prepared by digesting the samples with nitric acid 35 .…”

Section: Methodsmentioning

confidence: 99%

Field Scale Evaluation of Seasonal Wastewater Treatment Efficiencies of Free Surface-Constructed Wetlands in ICRISAT, India

Datta¹,

Wani²,

Patil³

et al. 2016

Current Science

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The disparity between volume of wastewater generated and treated has resulted in severe water pollution and eutrophication of the water bodies in most Indian cities. Constructed wetlands (CWs) present a low-cost wastewater treatment option; however, field scale studies with real life wastewater are limited. Eichhornia crassipes (water hyacinth), Typha latifolia (Typha) and Pistia stratiotes (water lettuce) grow abundantly in eutrophicated water bodies, and are known for their nutrient uptake ability. In the present study, the wastewater of a nearby urban residential colony was treated by two-field scale free water surface CWs operating under identical hydraulic loading. The first treatment cells, in each of these two CWs were vegetated with Typha. The second treatment cells were vegetated with water hyacinth (CW-1) in one of the CWs and with water lettuce (CW-2) in the other. Wastewater treatment efficiencies of these free water surface CWs were evaluated, in terms of the removal efficiencies for key parameters, viz. chemical oxygen demand (COD), ammoniacal and nitrate nitrogen, phosphate, sulphate and total suspended solids (TSS). The CW-1 showed greater seasonal variation in performance. A steady removal efficiency of 35-40% was observed for ammoniacal nitrogen in both the free water surface CWs throughout the year, though removal efficiency of nitrate nitrogen reduced significantly during the winter. Plant sample analysis showed that the N, P and K uptake capacities of water lettuce were 1.53, 1.55 and 1.34 times higher than that of water hyacinth, for identical wastewater loading. The dry weight of the harvested biomass for water lettuce, during summer months, was much higher at 5.63 g/m 2 /d compared to 3.8 g/m 2 /d for water hyacinth.

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Section: Methodsmentioning

confidence: 99%

Field Scale Evaluation of Seasonal Wastewater Treatment Efficiencies of Free Surface-Constructed Wetlands in ICRISAT, India

Datta¹,

Wani²,

Patil³

et al. 2016

Current Science

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“…Sub-samples of fresh roots were collected for determination of root colonization rate by the AM fungus. The dry weights of leaves, stems and roots were determined after oven drying at 70 C for 48 h. Oven-dried sub-samples were milled to pass through a 0.5-mm sieve and dry ashed at 560 C for multi-element analysis by inductively coupled plasma-atomic emission spectroscopy (ICP-AES; Perkin Elmer Optima 3300DV) (Sahrawat et al 2002;Sun et al 2000).…”

Section: Methodsmentioning

confidence: 99%

Uptake of cadmium from an experimentally contaminated calcareous soil by arbuscular mycorrhizal maize ( Zea mays L.)

et al. 2003

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“…Chemical and physical characteristics of the investigated soils are presented in Table 1. (Lindsay and Norvell, 1978) and corresponding soil samples were digested using a tri-acid mixture to determine total amounts of these heavy metals according to Sahrawat et al (2002). Extractable Pb, Ni, Co, and Cd as well as their total contents in soil were determined by Atomic absorption spectrophotometer 210VGP.…”

Section: Site Description and Samplingmentioning

confidence: 99%

Accumulation of some heavy metals in plants and soils adjacent to Cairo – Alexandria agricultural highway

et al. 2017

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A UTOMOBILE exhausts are considered the main source of air pollution with heavy metals. Airborne pollutants are precipitated on soils surrounding highways causing serious ecological hazards. The current study aimed at evaluating levels of Pb, Ni, Co and Cd in surface (015-cm) and subsurface (1540-cm) soils nearby Cairo-Alexandria agricultural highway, and their accumulation in plants grown thereon. Seven locations were sampled at interval distances 50 meters on both sides of the highway road near Toukh city (Qualubya Governorate). Cabbage and citrus plants were also sampled and separated into its parts. Results revealed that the investigated soils are contaminated with Pb, Ni and Cd. These contaminants were brought to the subsurface layers of the soil at relatively high concentrations. Total and DTPA-extractable contents of Pb and Ni in the top surface soil decreased with increasing the distance from the high way on both sides of the road. Moreover, concentrations of these metals in the cabbage parts were significantly correlated with their total and DTPA-extractable contents. However, Co and Cd in soils seemed to be not affected by the exhausts of the cars on the highway. Heavy metals decreased in cabbage parts as follows: root > stem > outer leaves > inner leaves > core. Calculated BAF values for Pb, Ni and Co were very low indicating that cabbage might be an excluder for these metals whereas, their transfer from roots to shoots (transfer factor, Ts) were high. Heavy metal concentrations in citrus decreased as leaves > flavedo > albedo > segments. Generally, concentrations of heavy metals in plants particularly Pb exceeded the permissible limits. 19

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Evaluation of triacid and dry ashing procedures for determining potassium, calcium, magnesium, iron, zinc, manganese, and copper in plant materials

Cited by 85 publications

References 3 publications

Field Scale Evaluation of Seasonal Wastewater Treatment Efficiencies of Free Surface-Constructed Wetlands in ICRISAT, India

Field Scale Evaluation of Seasonal Wastewater Treatment Efficiencies of Free Surface-Constructed Wetlands in ICRISAT, India

Uptake of cadmium from an experimentally contaminated calcareous soil by arbuscular mycorrhizal maize ( Zea mays L.)

Accumulation of some heavy metals in plants and soils adjacent to Cairo – Alexandria agricultural highway

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