Assessment of the stability of dalteparin sodium in prepared syringes for up to thirty days: An in vitro study

2003 ◽  
Vol 25 (4) ◽  
pp. 1219-1225 ◽  
Author(s):  
Michael Laposata ◽  
Stephen M. Johnson
Keyword(s):  
In Vitro Study ◽  
Vitro Study ◽  
Dalteparin Sodium ◽  
The Stability

scholarly journals In vitro Study on Interaction of Ketotifen Fumerate with Paracetamol

IIUC Studies ◽  
2012 ◽  
Vol 7 ◽  
pp. 49-54
Author(s):  
Mohammed Aktar Sayeed ◽  
Sohel Rana
Keyword(s):  
Stability Constants ◽  
Aqueous Media ◽  
In Vitro Study ◽  
Vitro Study ◽  
Reaction Systems ◽  
The Stability

Interaction of ketotifen fumerate and paracetamol was studied in aqueous media. The ability of interaction of ketotifen with paracetamol is dependent on pH of the solution and it has been found that ketotifen forms 1:1 complexes at different pH. The stability constants have been calculated from the Ardon’s spectrophotomeric measurements of the reaction systems. When ketotifen was interacted with paracetamol and the absorbance was determined at 300 nm the stability constants were found of - 7.32 and -7.84 at pH 1.6 and 7.4 respectively. DOI: http://dx.doi.org/10.3329/iiucs.v7i0.12258 IIUC Studies Vol.7 2011: 49-54

The Evaluation of the Reliability of Periotest for Implant Stability Measurements: An In Vitro Study

2015 ◽  
Vol 41 (4) ◽  
pp. e90-e95 ◽  
Author(s):  
Hakan Bilhan ◽  
Altug Cilingir ◽  
Canan Bural ◽  
Caglar Bilmenoglu ◽  
Olcay Sakar ◽  
...  
Keyword(s):  
Measurement Method ◽  
Interobserver Reliability ◽  
In Vitro Study ◽  
Vitro Study ◽  
Insertion Torque ◽  
Implant Stability ◽  
Stability Measurement ◽  
The Stability ◽  
Stability Measurements

Periotest (Medizintechnik Gulden, Modautal, Germany) is a widely accepted implant stability measurement method, although the reliability is not well known. The aim of this in vitro study was to investigate the reliability of the Periotest in implant stability measurements. Thirty implants were placed in 3 cow ribs. The stability of each implant was measured by insertion torque, resonance frequency analyses, and Periotest and then compared. The Periotest values (PTVs) were measured by 4 different examiners. The measurements were repeated twice in both the buccal and mesial directions, for each implant at 2-hour intervals and the intra- and interobserver reliability of Periotest was measured. Results showed that the intraobserver reliability of the Periotest was excellent for the buccal PTVs but fair to poor for the mesial PTVs. The interobserver reliability of the Periotest was excellent for the buccal PTVs but poor for the mesial PTVs. No significance was found between the PTVs and IT values (P = .803) and PTVs and ISQ values, whereas a 47.1% significant correlation was detected between the IT values and ISQ values (P = .009). The present study indicates that only Periotest measurements from buccal result in excellent intra- and interobserver reliability for the quantification of the implant stability.

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