Calibration of an inductively coupled plasma-atomic emission spectrometer for the analysis of environmental materials

McQuaker, Neil R.; Kluckner, Paul D.; Chang, Gok N.

doi:10.1021/ac50043a026

Cited by 114 publications

(38 citation statements)

References 36 publications

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“…The leaf litter, twigs, branches and fruits were then ground into powder using a tungsten carbide vibrating mixer mill (Mitamura, Retch 18-34) and digested with nitric acid in a high pressure Teflon Vessel (Quaker et al, 1970;Koyama and Sutoh, 1987). The concentrations of elements, Ca, Mg, AI, Fe, Sand P, were determined by an Inductive Coupled Plasma Atomic Emission Spectrometer (lCPS-2000; Shimadzu, Japan).…”

Section: Laboratory Methods and Data Analysesmentioning

confidence: 99%

Dynamics of litter production and its quality in relation to climatic factors in a super wet tropical rain forest, West Sumatra, Indonesia

Hermansah

Masunaga

Wakatsuki

et al. 2003

Tropics

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In order to clarify the detailed dynamics of litter production and its nutrient characteristics in a super wet tropical rainforest, a study was conducted using twelve litter traps installed in a one ha study plot at PinangPinang, in West Sumatra, Indonesia. The trapped litter was collected monthly in two different years (December 1997 to November 1998 and December 1999 to November 2(00). The annual mean litter production in 1997/98 was 12.2 Mg ha-' and in 199912000 was 11.8 Mg ha-'. The contribution of leaf litter to the totallitterlall was significantly greater (64.8%) than that of the other components i.e., twigs, branches and fruits. The totallitterlall and leaf litter production ranged from 0.16 to 1.98 and from 0.10 to 1.30 Mg ha-'month-', respectively, during the two observation periods. The seasonal pattern of leaf litter production showed a strong positive correlation with mean monthly temperature. Since the mean monthly temperature showed a negative correlation to monthly precipitation, the monthly leaf litter production also showed a negative correlation to the monthly precipitation. The negative correlation between leaf litter production and monthly precipitation was, however, less significant than the positive correlation of leaf litter production to temperature. This finding suggests that, although the mechanism is unknown, leaf litter production is strongly regulated by slight fluctuations in monthly mean temperature, within the range of 25-28 'C in this super wet tropical rainforest. A positive correlation between temperature and litter production was also observed for the total litter and for the other litter components. However, the correlation was less significant for these other litter categories than for leaf litter. Among the litter components (leaf, twigs, branches and fruit), leaf litter showed the highest concentration of nitrogen (N), magnesium (Mg) and sulfur (S). The reproductive structure (fruit) had a significantly higher concentration of P and K than leaf litter, but the fruit's concentration of Ca was lower than those of the other components of the litter. The concentrations of Ca in leaf litter showed a positive correlation to rainfall and a negative correlation to temperature, while the concentration of K in leaf litter showed the reverse trend. The trend of N concentration in leaf litter was somewhat similar to Ca. These trends might be due to the effect of dilution on Ca and N, remobilization on N, and the leaching by rainfall on K.

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Section: Laboratory Methods and Data Analysesmentioning

confidence: 99%

Dynamics of litter production and its quality in relation to climatic factors in a super wet tropical rain forest, West Sumatra, Indonesia

Hermansah

Masunaga

Wakatsuki

et al. 2003

Tropics

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“…Some samples which could not be analyzed immediately were stored at 4"C after the addition of concentrated HCl adjusted to pH 1, except for chlorine determination. Analytical methods were as follows: Nitrate concentration was measured with an ultraviolet spectrometer (Wetter and Uglum 1970), chlorine ion by thiocyanate method (Adriano and Doner 1982), bicarbonate content by titrating with dilute sulfuric acid (Bower and Wilcox 1965), pH using a pH meter with a glass electrode, total elemental concentrations of AI, Fe, Si, Mn, Ca, Mg, and S were measured by inductively coupled plasma atomic emission spectrometry (ICP) using Simadzu ICPS-2000 (Quaker et al 1970), and K and Na concentrations were measured by atomic adsorption spectrometry, AAS (Dale and Norman 1982). Major elemental composition of soils and rocks samples was also analyzed by ICPS-2000 and AAS after digestion with hydrogen fluoride and hydrogen chloride in a closed Teflon vessel (Uchida 1979).…”

Section: Methodsmentioning

confidence: 99%

Characterization of precipitation and river water chemistry for measuring rates of weathering and soil formation in Iu river watershed, southwestern Japan

Rasyidin¹,

Wakatsuki²

1994

Soil Science and Plant Nutrition

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“…Samples were digested with HNO 3 in a high pressure Tefflon Vessel (Quaker et al, 1970;Koyama & Sutoh, 1987). After heating and digest in 160 °C for 5 hours and cooling overnight, then adding HF 10% and H 3 BO 3 4%.…”

Section: Sampling and Analysismentioning

confidence: 99%

Influence of Water Management and Silica Application on Rice Growth and Productivity in Central Java, Indonesia

Siregar¹,

Sipahutar²,

Husnain³

et al. 2016

JAS

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Rice cultivation in our study site at Central Java, Indonesia, is constrained by water scarcity and blast disease problems. A field experiment was thus conducted to evaluate the effect of water management and silicon (Si) application (with 500 kg ha -1 of silica gel) on improving rice growth and productivity and blast disease infection in Jakenan, Central Java. Split plot in randomized complete block design with 4 replications was used. The results showed that two water saving methods, intermittent (IT) and aerobic rice (AR) increased rice yield compared to conventional flooding water management. Further, IT showed better root growth and hence lodging resistance and decreased blast disease infection. IT had higher yield potential compared to AR although the yield of IT and AR were not statistically different. Si application gave significant effect on reducing leaf and neck blast infection and also increased stomata density (p < 0.01) in all water treatments. Si application did not result in increased yield but exhibited potential towards improving rice plant growth and production. Since Si fertilizer was never used in rice cultivation in Indonesia, the study reveals that IT combine with Si application was a suitable management for rice production in dry season in water limited Central Java region.

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Calibration of an inductively coupled plasma-atomic emission spectrometer for the analysis of environmental materials

Cited by 114 publications

References 36 publications

Dynamics of litter production and its quality in relation to climatic factors in a super wet tropical rain forest, West Sumatra, Indonesia

Dynamics of litter production and its quality in relation to climatic factors in a super wet tropical rain forest, West Sumatra, Indonesia

Characterization of precipitation and river water chemistry for measuring rates of weathering and soil formation in Iu river watershed, southwestern Japan

Influence of Water Management and Silica Application on Rice Growth and Productivity in Central Java, Indonesia

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