scholarly journals Prosody and absolute vs. relative uses of English and Slovene adjectives

Linguistica ◽  
2017 ◽  
Vol 57 (1) ◽  
pp. 151-160
Author(s):  
Monika Kavalir

The paper explores the role prosody plays in distinguishing two types of uses of adjectival structures in English and Slovene. In both languages, adjectival structures can be used with an internal standard, yielding an absolute interpretation, or with an external standard (typically comparing the nominal referent to other members of the same category), giving rise to a relative interpretation. It is shown that, in the base degree, a focus on the adjective provides disambiguation by making it clear that the construction is an instance of absolute use. In the comparative and superlative degrees, however, structural differences in the intonation patterns of the two languages come into play in the case of analytic comparison, so that in Slovene reduction in stress signifies absolute use, but in English relatively used comparatives and superlatives can be unstressed as well.

1972 ◽  
Vol 55 (3) ◽  
pp. 660-661
Author(s):  
A J Shepparid ◽  
W D Hubbard ◽  
A R Prosser

Abstract A comparative study was made of 2 GLC calibration methods for determining the menadione and menadione sodium bisulfite content of pharmaceuticals. One method utilizes an external standard and the second method makes use of butylated hydroxyanisole as an internal standard. Measurements were made on 8 pure solutions of known concentration of menadione and on 5 pharmaceuticals containing menadione or menadione sodium bisulfite. No significant difference was found between the results obtained by the 2 methods.


1992 ◽  
Vol 57 (1) ◽  
pp. 46-55
Author(s):  
Bohuslav Rittich ◽  
Stanislav Standara

Influence of internal standard technique on precision of amino acid determination was studied. The law of propagation of errors and the information theory was applied in this paper. From the results it follows that the internal standard technique did not inevitably improve the precision of the determination. In the case of multicomponent sample, the external standard technique improved the accuracy only if calibration curve was used.


2019 ◽  
Vol 2019 ◽  
pp. 1-11
Author(s):  
Huiwei Bao ◽  
Jihong Chi ◽  
Huailei Yang ◽  
Fangxin Liu ◽  
Kuo Fang ◽  
...  

In this paper, a valid evaluation method for the quality control of Danggui Kushen pills (DKP) has been established based on quantitative analysis of multicomponents by single marker (QAMS). Gallic acid, matrine, oxymatrine, catechin, ferulic acid, and rutin were selected as the indexes for quality evaluation of DKP. The analysis was achieved on an Agilent ZORBAX SB-C18 column (250  mm × 4.6  mm, 5 μm) via gradient elution. Gallic acid was used as internal standard to determine the relative correction factors (RCF) between gallic acid and other five constituents in DKP. The contents of those components were calculated at the same time. The accuracy of QAMS method was verified by comparing the contents of six components calculated by external standard (ES) method with those of the QAMS method. It turned out that there was no significant difference between the quantitative results of QAMS method and external standard method. The proposed QAMS method was proved to be accurate and feasible according to methodological experiments, which provided an accurate, efficient, and economical approach for quality evaluation of DKP.


2019 ◽  
Vol 34 (3) ◽  
pp. 251-259 ◽  
Author(s):  
P. Stacey

This work was undertaken in preparation for a survey to assess the exposure of carpenters to hazardous dust working in construction. Inhalable dust, in this industry, was expected to contain both crystalline mineral and amorphous phases (wood dust). The Rietveld method was applied to provide a simultaneous multicomponent analysis. To assess its performance, mixtures of aerosolised calcite, gypsum, quartz, kaolinite, and wood dust were collected onto quartz fibre filters (n = 41) using the Button inhalable sampler. Results obtained using Rietveld were compared with loaded mass and those from external standard calibrations. The measured content of a component in 14 samples was used as an internal standard by Rietveld to determine amorphous content (wood). The performance of the Rietveld and external standard methods was similar. The 95% confidence interval for the absolute differences between the two methods was 15%. Only one relative difference of more than 15% had a mass loading >0.5 mg. An approach for assessing the limits of detection with relative intensity ratios was applied and gave comparable values with the usual method using calibration coefficients from the external standard method. Rietveld is therefore a potentially useful multicomponent method for the measurement of dust aerosol to help better understand workers' exposures.


Author(s):  
Manda V. ◽  
Popescu M. ◽  
Baniceru M.

Two simple, sensitive and specific gas and liquid chromatographic methods are developed and validated for quantification of articaine in human whole blood. Liquid-liquid extraction with n-hexane-isoamyl alcohol 90:10 (v/v) is used for sample preparation in both methods. GC-FID (gas chromatographic-flame ionization detection) analysis is performed with a gas chromatograph equipped with a split-splitless injector, flame-ionization detector and HP INNOwax capillary column. Reverse phase LC-PDA (liquid chromatographic-photo diode array detection) analysis is carried out using a C18 Hypersil GOLD column with two mobile phases: acetonitrile-water 10 mM ammonium acetate 50:50 (v/v), pH 7, and acetonitrile-buffer solution sodium acetate 10 mM and acetic acid 10 mM 50:50 (v/v), pH 4.7, respectively. A comparison between GC-FID and LC-PDA is performed, as well as between internal and external standard as quantification methods in LC. The best results in terms of accuracy (as recovery) and precision (as relative standard deviation) are obtained in GC (95-98% and 5.5-8.2%, respectively) with lidocaine internal standard and in LC (96-102% and 4.2-6.1%, respectively) with external standard and mobile phase pH 4.7. This method is applied in a preliminary pharmacokinetic study to three healthy volunteers to whom anesthesia with articaine is performed.


Química Nova ◽  
2010 ◽  
Vol 33 (4) ◽  
pp. 984-987 ◽  
Author(s):  
Elcio Cruz de Oliveira ◽  
Edson I. Muller ◽  
Fernanda Abad ◽  
Juliana Dallarosa ◽  
Cristine Adriano

1979 ◽  
Vol 62 (6) ◽  
pp. 1285-1291
Author(s):  
Ellen J De Vries ◽  
Jakob Zeeman ◽  
Robert J E Esser ◽  
Ben Borsje ◽  
Frits J Mulder

Abstract Vitamin D is determined in preparations containing other fat-soluble vitamins by high performance liquid chromatography (HPLC). The unsaponifiable residue is extracted and separated from interferences by reverse phase chromatography; the fraction corresponding to vitamin D3 is collected and quantitated using normal phase chromatography (amylalcohol-n-hexane as mobile phase) by measuring the vitamin D3 and previtamin D3 peaks at 254 nm. Previtamin D3 content is calculated as vitamin D3 with a conversion factor (determined on the equipment used). Application of the method to vitamin AD3 mixtures in oils gives 98-102% recovery. The reproducibility, using an external standard, is 2-3%, calculated as the coefficient of variation; with an internal standard, the coefficient of variation is 1-1.5%. The method measures potential vitamin D3 content in preparations containing ≽ 200 IU/g in the presence of all known vitamin D3 isomers, vitamin A, and vitamin E.


2019 ◽  
Vol 2019 ◽  
pp. 1-8
Author(s):  
Dan Xu ◽  
Sicen Wang ◽  
Xiaofang Hou ◽  
Changshan Sun

Tianwang Buxin pill (TWBXP) is an ancient Chinese classic prescription. Liquiritin, deoxyschizandrin, and tanshinone II A are three bioactive components in TWBXP, which have been proven to be closely related to the therapy effect of neurodegenerative disease. Their contents are very low in TWBXP. In this study, we used a diode array detector (DAD) to perform a full wavelength scanning in order to choose a most suitable detection wavelength to establish an HPLC method for the simultaneous determination of these three components in TWBXP. Various chromatographic conditions were investigated to verify its applicability. Finally, a Kromasil C18 column (250 × 4.6 mm, 5 μm) thermostated at 30°C, mobile phase as 0.2% phosphoric acid solution (eluent A), and 0.1% phosphoric acid-acetonitrile solution (eluent B) were used. Both external standard method and internal standard method were used for quantification. The results showed that both methods were simple and convenient in operation without special pretreatment and exhibits excellent precision, repeatability (RSD < 3.0%), good linearity (R2 > 0.9990), and good recoveries (recovery value between 95% and 105%). Because of the low contents in samples, the internal standard method provided a better accurate result than the external standard method. The stability results showed the sample became stable within 24 hours at room temperature. The method provides a convenient and effective way for the quality control of TWBXP, and it can help the research about AD in the future.


Diachronica ◽  
1992 ◽  
Vol 9 (2) ◽  
pp. 167-187 ◽  
Author(s):  
Marianne Cooley

SUMMARY In spite of later clearly delineated American dialects, many visitors as well as inhabitants in colonial and early federal America commented upon the uniformity of American English, although others pointed out differences. Taken together, the usual evidence sources such as orthoepistic and grammatical description, naive spellings, contemporary journalistic commentary, or literary dialect representation provide indecisive evidence. However, a principle of perceptual recognition of language variation in relation to both an external standard (British English) and a developing internal standard (American English) may account for the uniformity comments while diversity simultaneously existed. RÉSUMÉ Malgré l'existence d'un certain nombre de dialectes déjà bien délimités, de nombreux voyageurs et habitants d'Amérique coloniale remarquèrent et commentèrent sur l'uniformité de l'anglais américain, alors que d'autres relevèrent des différences significatives. En gros, les documents habituels, tels que les descriptions orthopéistes et grammaticales, les orthographes naïves, les commentaires journalistiques de l'époque et les dialectales littéraires offrent des témoignages contradictoires. Toutefois une perception de la variation linguistique par rapport à un standard externe (l'anglais britannique) et un standard interne (l'anglais américain) peut expliquer l'uniformité des commentaires en regard d'une diversité persistante. ZUSAMMENFASSUNG Trotz deutlich erkennbarer amerikanischer Dialekte, sprachen viele Besu-cher sowie die Einwohner des kolonialen und frühen foderativen Amerika von der Ausgewogenheit des amerikanischen Englisch, während andere auf Unter-schiede hinwiesen. Insgesamt gesehen, bieten die ublichen Beweisquellen wie orthoepische Schriften, grammatische Abhandlungen, phonetische Schreibun-gen, zeitgenössische journalistische Kommentare und literarische Dialekte, kei-ne entsprechenden Unterlagen. Ein Prinzip etwa der 'auffassungsfähigen Er-kennung' von Sprachvariationen im Verhältnis zu einem 'externen Standard' (i.e., dem britischen Englisch) und einem sich in der Entwicklung befindenden 'internen Standard' (dem amerikanischen Englisch) dürfte jedoch die Einfor-migkeit der Kommentare und Beobachtungen erklären, trotz der dialektalen Unterschiede, die zur damaligen Zeit wohl existierten.


1987 ◽  
Vol 2 (4) ◽  
pp. 242-248 ◽  
Author(s):  
W. Wong-Ng ◽  
C. R. Hubbard

AbstractExternal standard and internal standard calibrations are important procedures for achieving high accuracy in X-ray powder diffraction studies. The theoretical basis as well as procedures for obtaining calibration curves are given. Methods and examples of selecting Standard Reference Materials (SRMs) which are produced and issued by the National Bureau of Standards (NBS), and procedures of sample preparation with these standards are also described. Three examples are presented to indicate the value of using SRMs.


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