Analytical info
| Topic | Empty template | Finalized sheet |
|---|---|---|
| method comparisons | (MC) | MC1: SO4 - Comparison of ICP-, IC- and spectrophotometric determination in colored soil solutions MC2: Comparison of pH measurements in soils according to ISO 10390 and DIN 19684-1 MC3: Comparison of HTCO CLD and PO UV-220 nm oxidation MC4: Influence of different acid mixtures in microwave digestion on the iron concentration determined by ICP-AES in foliage samples MC5: Aqua regia digestion, total digestion and nitric acid digestion for humus and soil samples |
| new methods | (NM) | |
| material tests | (MT) | MT1: Leaching of PE-bottles MT2: Comparison of two wet-only samplers: ANDERSEN and EIGENBRODT UNS 130 |
| sample pretreatment and storage | (SP) | SP1: Pair-wise comparison of filtered and not filtered precipitation samples SP2: Storage of soil water and depo samples under diferent conditions SP3: Influence of filtration on TOC content in different water samples |
| technical information | (TI) |
Analytical information from meetings of the Working Group and heads of the labs
Quality Control
- König N. - Quality Assurance and Quality Control in Laboratories – a review
- Mosello R. - DOC in ion balances of deposition solutions
- Mosello R. - Excel sheet for testing water chemical analysis
- Barbaste B. - Design and use of control and reference material for plant analysis
- Derome K. - Use of control charts as QA/QC tool
- Mosello R. - QA/QC for water samples
- Mosello R., König N. - QA/QC for water samples with DOC
- Fürst A. - Plausible Ranges for Foliar and Litterfall Analyses
- De Vos B. - Plausible Ranges for Soil Analyses
- Kostrova S. et al. - Tolerable limits for total elements in soil (example of Fe)
- Marchetto A. et al. - Detection/quantification limits – determination and use
- Guerin A. - uncertainties of C and N quantified in soils with an elemental analyzer
- Fürst A. - Using control charts with examples of control charts delivered by participants
- Marchetto A. - Problems with ionic balance with examples delivered by participants
- Derome K. - problems with conductivity check
- Mazzoli A. - Using WRT and control charts to evaluate analytical prescision
- Kowalska A. - Measuring of samples with low concentrations: contamination problems and clean working conditions
Sample Storage
- Cools N. - Longterm storage of soil samples
- Mutsch F. - Experimental Design to Detect Chemical Changes of Forest Soils During Long-term Storage
- König N. - Effects of storage in field and in laboratory and influence of temperature and light on the chemistry of forest water samples
Sample Preparation
- De Cinti B. at al. - From sampling to chemical determination: at which step the possible mistakes?
- Barbaste M., Dalix T., Desalme S., Soulé R., Orignac D. - Grinding plant samples: a critical risk of contamination
- König N. - Problems with the homogenisation and subsampling of humic samples and samples from sandy soils with high organic matter content
- Fürst A. - Drying of foliage and litterfall
- König N. - Changing of water samples by filtration with paper (Schwarzband) and membran filters
Analytical Methods for Digestions and Extractions
Exchangeable Cations with BaCl2-Extraktion
- Durkovicova J. - Exchangeable ion determinations in BaCl2
- Kantola M. et al. - Problems in soil analysis: exchangeable cations and acidity
- Drozdz P. - Problems and solutions in measuring exchangable Ca, Mg and K in soil samples
- O´Dea P. et al. - Mouldy problems and more with CEC determination
- König N. -Comparison of the analytical method for exchangable cations in soil and humus layer of the ICP Forests Manual with the German methods
Aqua Regia Digestion
- Proix N. - Application of microwave assisted Aqua Regia extraction to soil samples
- König N. - HNO3-pressure and HNO3-microwave digestion for humus samples
- König N. - Measuring of elements in aqua regia digestion solutions with ICP
- O´Dea P. et al. - Hot issues with Aqua Regia
- König N. - New system for aqua regia digestion: comparison with sytem with glas tubes and reflux condenser
- König N. - Aqua regia digestion with microwave or reflux method
- Soukand U. - Briefly about MW digestion and aqua reqia
- Genouw G. - Microwave extraction method in soil – Status and how to proceed
Microwave Digestion for plant material
- Krupova D. - Problems with the digestion of foliage samples
- Fürst A. - Improvements of a Microwave digestion - ICP-AES method for foliage samples
Digestion for plant material
Total Digestion
- Mutsch F. et al. - Total Digestion versus XRF Analysis
- König N. - Total digestion with HNO3/HF (German method)
- Michopulos P. - XRF for total elements
- Guerin A. - Total major and trace elements in soils obtained with an automated digestion system
Analytical Methods for the Determination of Parameters
Alkalinity
- Mosello R. - Problems related to measurements of low value of alkalinity
- Mosello R., Marchetto A. - Problems and solutions measuring Alkalinity
- Tartari G. et al. - Measurement of low values of total alkalinity
- Ciesla Z., Kowalska A. - How to measure alkalinity in water samples - some practical information
- Marchetto A. - Presentation about alkalinity problems
- Hristova R. - Difficulties in determination of alkalinity
Ammonium (NH4)
- Iacoban C. - N-NH4 and N-NO3 concentrations in water samples
- König N. - Problems with NH4 determination with ion chromatography
- Ciesla Z. - Ammonium in 8th Deposition and soil solution WRT 2016/2017: Problem with high results by IC
Atomic Absorption
- Michopoulos P. - Problems with calibration of FAAS for metals
- Iacoban C. - Comparison between AAS and IC cations analysis for the 2015 WRT
- Butlers A. - Problems with C/S element analyzer and FAAS
C total
- Fürst A. - Calibration of Element-Analyzers (LECO CN 2000, CNS 2000 and SC 432)
- Butlers A. - Problems with C/S element analyzer and FAAS
- Guerin A. - Uncertainties of C and N quantified in soils with an elemental analyzer
Calcium
- Fürst A. - Determination of Ca and K with Flame-AAS
- Fürst A. - Why it is so difficult to analyze K, Ca and S in tree foliage?
- Drozdz P. - Problems and solutions in measuring exchangable Ca, Mg and K in soil samples
Carbonate
- De la Cruz A. et al. - Why use calcimeter method and not titration method for measured carbonates?
- König N. - Experience with a new CO3-Analyzer
- Öztürk T. - The comparison of the results of the CO3 analyzer instrument and the Schiebler calcimeter
- Öztürk T. - Analytical Study with New Version Automated Carbonate Analyzer (Calcis Auto)
- Tatzber M. - The Potential of Mid Infrared Spectroscopy for Carbonate Determinations in Forest Soil Samples
DOC
Free H+
ICP
- König N. - Calibration for potassium measurements at low concentrations
- Durkovicova J. - Comparison of LOD/LOQ for ICP measurements in water samples with and without ultrasonic nebulizer
- Fürst A. - Improvements of a Microwave digestion - ICP-AES method for foliage samples
- Kowalska A. - Cation determination by ICP-OES and Ion chromatography and its influence on ionic balance
Ion Chromatography
- Nenkova B. - Ion chromatography in water with low contamination
- Tartari G. et al. - Analytical aspects comparison DTN and IC determinations
- Tartari G., Marchetto A. - Calibration for ammonium and sulfate measurements at low concentrations
- König N. - Calibration for potassium measurements at low concentrations
- Iacoban C. - Comparison between AAS and IC cations analysis for the 2015 WRT
- Kowalska A. - Cation determination by ICP-OES and Ion chromatography and its influence on ionic balance
Magnesium
Mercury
- Krupova D. - Mercury Analyzer
- König N. - Development of a cost efficient sampler for Mercury deposition measurements
- König N. - Comparison of two methods for the measurment of Mercury: ICP-MS and AFS
- Sõukand Ü. - Determination of mercury in natural waters
Moisture
N total
- De la Cruz A. - Problems in total nitrogen determination in water
- Tartari G. et al. - Analytical aspects comparison DTN and IC determinations
- Fürst A. - Calibration of Element-Analyzers (LECO CN 2000, CNS 2000 and SC 432)
- Zlindra D. - Measurement of total N in Water – problems with high blanks
- Zlindra D. - Total N in water – problem solved
- Jacobsen J. E. - Differences between results from N-determination by Kjeldahl method and combustion methods
- König N. - Determination of total N
- Michopoulos P. - Total N in waters by the Kjeldahl method. Statistical problems
- Kowalska A., Ciesla Z. - DOC and TN determination: acomparison of instruments from Elementar and Shimadzu
- Kunnas S. - Changing the analysis method during the long-term monitoring project - TN analysis with TOC/TN vs. FIA
- Drozdz P. - Comparison of two methods of determination of total N in soil samples (dry combustion and modified Kjeldahl)
- Guerin A. - Uncertainties of C and N quantified in soils with an elemental analyzer
- Ionescu M. - Nitrogen distillated device
Nitrate (NO3)
- Iacoban C. - N-NH4 and N-NO3 concentrations in water samples
- Marchetto A. - Nitrite interference in nitrate determination by continous flow analysis
Phosporous
- Velcheva A. et al. - Determination of clay, silt and total phosphorus in soil samples
- Michopoulos P. - Colorimetric determination of P in digested plant material
- Michopoulos P. - The use of triethanolamine as a buffer in acid digests for the determination of P in plant tissues
- Michopoulos P. - Olson P in Forest Soils
- Sõukand Ü. - Phosphorus fractionation in soils
- Guerin A. - What about a wide applicable P available method in forest soils?
Phosphate
pH
- Symossek F. - pH-Determination
- Mutsch F. - Potassium in Aqueous Solutions after pH-Measurement
- Zlindra D. - Differences in measurement of soil pH: ISO 10390:2005 vs. ISO 10390:1994
- Symossek F. - Special presentation about pH problems
- König N. - A fully automated system for pH measurements in soil samples
- Karadas G. - Experiences with Mettler Toledo pH-EC-Titration System In Soil Samples
Potassium
- Fürst A. - Determination of Ca and K with Flame-AAS
- Fürst A. - Why it is so difficult to analyze K, Ca and S in tree foliage?
- Drozdz P. - Problems and solutions in measuring exchangable Ca, Mg and K in soil samples
Sulphur
- Fürst A. - Why it is so difficult to analyze K, Ca and S in tree foliage?
- Fürst A. - Correct sulphur determination of maple leaves with higher calcium content
Sulphate
Soil Physics
Particle Size
- Velcheva A. et al. - Determination of clay , silt and total phosphorus in soil samples
- Krupova D. - Determination of particle size distribution
Volumetric Water Content
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