1 - 6 of 6 articles
A certified reference material (CRM) of sulfur dioxide (SO2) gas, with a certified value of purity, was developed for the preparation of primary reference gas mixtures of SO2 in nitrogen (N2) gas. Impurity analyses by “subtraction method” were performed using a gas chromatograph (GC) with a...
The increased level of pesticide residues in vegetables is a potential threat to human health, especially in children. In this study, human health risk assessment associated with the presence of pesticide residues in fresh pointed gourd (Trichosanthes dioica Roxb.) samples purchased from...
The box and whiskers plot (boxplot) has shown to be an effective data visualization tool in proficiency testing. The boxplot provides a quick visual summary of the considered data set . All the descriptive aspects of data reported in a round of a proficiency test can be studied with this plot....
In situ measurements are made without the removal of a physical sample and have many advantages over traditional ex situ measurements, made on a removed sample usually in a remote laboratory. The quality of ex situ measurements is usually expressed primarily in terms of their measurement...
This paper describes the organization and evaluation of the proficiency tests (PTs) organized by the Italian National Institute of Health (ISS) during 2018 and 2019. The aim of the PTs was to determine the quantity of active ingredient in various formulations of plant protection products (PPPs)....
The paper presents the results of a study of errors arising in the presence of radial displacements in a conductometric differential cell with a removable central part, in the process of measuring the electrolytic conductivity of solutions. The analysis of the component of the measurement error...
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Sign Up Log In
To subscribe to email alerts, please log in first, or sign up for a DeepDyve account if you don’t already have one.
To get new article updates from a journal on your personalized homepage, please log in first, or sign up for a DeepDyve account if you don’t already have one.