An overview of the Kjeldahl method of nitrogen determination. Part II. Sample preparation, working scale, instrumental finish, and quality control
P Sáez-Plaza, MJ Navas, S Wybraniec… - Critical Reviews in …, 2013 - Taylor & Francis
The Kjeldahl method was introduced in 1883 and consists of three main steps: sample
digestion, distillation, and ammonia determination (titration being the primary method). The …
digestion, distillation, and ammonia determination (titration being the primary method). The …
[HTML][HTML] Portable X-ray fluorescence for environmental assessment of soils: Not just a point and shoot method
Portable XRF is a rapid, mobile, high throughput, and potentially cost effective instrumental
analytical technique capable of elemental assessment. It is widely used for environmental …
analytical technique capable of elemental assessment. It is widely used for environmental …
A review of the issues, methods and perspectives for yield estimation, prediction and forecasting in viticulture
C Laurent, B Oger, JA Taylor, T Scholasch… - European Journal of …, 2021 - Elsevier
Grapevine yield is defined as the quantity of harvest, expressed as either grape mass or
wine volumeunits, which has been collected per surface unit are and per crop cycle. The …
wine volumeunits, which has been collected per surface unit are and per crop cycle. The …
Theory of sampling (TOS) versus measurement uncertainty (MU)–A call for integration
KH Esbensen, C Wagner - TrAC Trends in Analytical Chemistry, 2014 - Elsevier
We assess current approaches to measurement uncertainty (MU) with respect to the
complete ensemble of sources affecting the measurement process, in particular the extent to …
complete ensemble of sources affecting the measurement process, in particular the extent to …
Metrological and quality concepts in analytical chemistry (IUPAC Recommendations 2021)
DB Hibbert, EH Korte, U Örnemark - Pure and Applied Chemistry, 2021 - degruyter.com
Recommendations are given for metrological terminology in analytical chemistry. Analytical
chemistry is defined, and concepts related to laboratory practice are termed and defined …
chemistry is defined, and concepts related to laboratory practice are termed and defined …
[HTML][HTML] Furfural production from lignocellulosic biomass by ultrasound-assisted acid hydrolysis
CA Bizzi, D Santos, TC Sieben, GV Motta… - Ultrasonics …, 2019 - Elsevier
Furanic platforms (eg furfural, furfuryl alcohol and hydroxymethylfurfural) can be obtained
from biomass, being considered as a green alternative to petrochemical products such as …
from biomass, being considered as a green alternative to petrochemical products such as …
A Monte Carlo-based workflow for geochemical anomaly identification under uncertainty and global sensitivity analysis of model parameters
Uncertainty associated with the identification of geochemical anomalies linked to
mineralization has been a major concern in processing geochemical survey data. In this …
mineralization has been a major concern in processing geochemical survey data. In this …
Defining urban soil geochemical backgrounds: A review for application to the French context
Urban soil is the “memory” of cities, as the sequence of deposited materials originates from
the various stages of a city's life cycle, through a complex process of urban soil …
the various stages of a city's life cycle, through a complex process of urban soil …
Identification of the geographical origin of pumpkin seed oil by the use of rare earth elements and discriminant analysis
D Jöbstl, D Bandoniene, T Meisel, S Chatzistathis - Food Chemistry, 2010 - Elsevier
The aim of this work was to develop an analytical method to assure the geographical origin
of Styrian pumpkin seed oil, a high priced local product which is protected by the European …
of Styrian pumpkin seed oil, a high priced local product which is protected by the European …
Urban geochemical mapping studies: how and why we do them
CC Johnson, EL Ander - Environmental geochemistry and health, 2008 - Springer
Geochemical mapping is a technique rooted in mineral exploration but has now found
worldwide application in studies of the urban environment. Such studies, involving …
worldwide application in studies of the urban environment. Such studies, involving …