Determination of Fluoride in Soil Water Extract Through Ion Chromatography

2003 ◽  
Vol 34 (1-2) ◽  
pp. 181-188 ◽  
Author(s):  
J. K. Saha ◽  
S. Kundu
Keyword(s):  
Soil Water ◽  
Ion Chromatography ◽  
Water Extract ◽  
Soil Water Extract

Determination of fluoride in soil water extract by ion chromatography with column-switching technique

2016 ◽  
Vol 34 (4) ◽  
pp. 442
Author(s):  
Xinhua JIANG ◽  
Chengzhu NI ◽  
Binhe ZHU ◽  
Xunyan ZHAO ◽  
Suqing CHEN ◽  
...  
Keyword(s):  
Soil Water ◽  
Ion Chromatography ◽  
Water Extract ◽  
Column Switching ◽  
Soil Water Extract

Root Elongation Method for the Quality Assessment of Metal-Polluted Soils: Whole Soil or Soil-Water Extract?

2020 ◽  
Vol 20 (4) ◽  
pp. 2294-2303
Author(s):  
Eva V. Prudnikova ◽  
Alexander Neaman ◽  
Vera A. Terekhova ◽  
Mikhail M. Karpukhin ◽  
Evgenii L. Vorobeichik ◽  
...  
Keyword(s):  
Quality Assessment ◽  
Soil Water ◽  
Root Elongation ◽  
Water Extract ◽  
Polluted Soils ◽  
Elongation Method ◽  
Soil Water Extract

The influence of soil water extract and thiamine on the growth of Cladophora glomerata

1975 ◽  
Vol 53 (6) ◽  
pp. 530-535 ◽  
Author(s):  
Laurence F. Moore ◽  
Duncan A. McLarty
Keyword(s):  
Soil Water ◽  
Water Extract ◽  
Optimum Concentration ◽  
Laurentian Great Lakes ◽  
Cladophora Glomerata ◽  
Active Components ◽  
Two Samples ◽  
Soil Water Extract ◽  
Labile Component ◽  
Synthetic Media

Soil water extract (SWE) has been used for decades to supplement certain algal and fungal cultures, but its active components remain essentially unknown. Cladophora glomerata, an attached green alga which has become a problem in several of the Laurentian Great Lakes and elsewhere, is one species that grows well on synthetic media supplemented with SWE. Unialgal cultures were used to investigate the nature of the active components in SWE with the hope that insight of the nutritional requirements of this alga would be gained.Analysis of SWE showed that an organic heat-labile component was significant, and when thiamine was substituted for SWE, it was found to provide 80% of the stimulation induced by SWE. The presence of thiamine in two samples of SWE was verified, and concentrations of 3 and 10 μg/litre were determined using the Phycomyces bioassay. Subsequent investigations of the requirement of thiamine by C. glomerata demonstrated that 1 μg/litre, provided either by SWE or as the pure vitamin, stimulated satisfactory growth, while 10 μg/litre is the apparent optimum concentration.

scholarly journals Determination of dissolved reactive and dissolved total phosphorus in water extract of soils

2011 ◽  
Vol 57 (No. 1) ◽  
pp. 1-6 ◽  
Author(s):  
J. Matula
Keyword(s):  
Agricultural Soils ◽  
Water Extract ◽  
Phosphorus Level ◽  
Total Water ◽  
Testing Laboratory ◽  
Molybdenum Blue ◽  
Dissolved Phosphorus ◽  
Soil Water Extract ◽  
Simplified Procedure

The simplified acid peroxydisulphate digestion of soil water extract was evaluated for determination of total dissolved phosphorus by molybdenum-blue colorimetry in comparison with direct P-detection in water extract by the ICP-AES technique. The research was conducted on 79 agricultural soils with different agrochemical characteristics. The results of the colorimetric P detection in water extract without digestion and ICP phosphorus detection were different. The median of values determined by ICP-AES was 1.7 times higher than that of colorimetry, but the correlations between the two measurements were quite close (r = 0.993). Differences between the colorimetric phosphorus and ICP-AES phosphorus were irregular, increasing as the phosphorus level in soils decreased. The simplified procedure of acid peroxydisulphate digestion is useful for routine determination of total water-extracted phosphorus in soils when the soil testing laboratory is not equipped with the ICP-AES technique. The two-tailed paired t-test did not prove any difference in the values between the direct ICP-AES P-detection in water extract of soils and colorimetric P-detection in the acid peroxydisulphate digest.  

Analysis of the 1:5 soil: water extract in burnt soils to evaluate fire severity

CATENA ◽  
2008 ◽  
Vol 74 (3) ◽  
pp. 246-255 ◽  
Author(s):  
J. Notario del Pino ◽  
I. Dorta Almenar ◽  
A. Rodríguez Rodríguez ◽  
C. Arbelo Rodríguez ◽  
F.J. Navarro Rivero ◽  
...  
Keyword(s):  
Soil Water ◽  
Fire Severity ◽  
Water Extract ◽  
Soil Water Extract

scholarly journals Determination of chloride, nitrite, nitrate and sulfate ions in water extract of coal by ion chromatography.

1988 ◽  
Vol 37 (4) ◽  
pp. T55-T60 ◽  
Author(s):  
Haruo HONMA ◽  
Keiko SUZUKI ◽  
Mutsuko YOSHIDA ◽  
Hisako YANASHIMA
Keyword(s):  
Ion Chromatography ◽  
Water Extract ◽  
Sulfate Ions ◽  
Nitrite Nitrate

Conductivity of soil-water extract as an index of soil structure

1955 ◽  
Vol 6 (1) ◽  
pp. 84-91 ◽  
Author(s):  
J. S. Joffe ◽  
Jesse Elson
Keyword(s):  
Soil Water ◽  
Soil Structure ◽  
Water Extract ◽  
Soil Water Extract

Simplified Evaluation of Salt Affected Soils Using 1:5 Soil–Water Extract

2021 ◽  
pp. 1-17
Author(s):  
Tsuneyoshi Endo ◽  
Mubarak Abdelrahman Abdalla ◽  
Abdel Karim Hassan Awad Elkarim ◽  
Mayu Toyoda ◽  
Sadahiro Yamamoto ◽  
...  
Keyword(s):  
Soil Water ◽  
Water Extract ◽  
Soil Water Extract ◽  
Salt Affected Soils
Sign in / Sign up

Export Citation Format

Share Document