The interactions and partitioning of low molecular weight polyethylene glycols and diethyl phthalate in ethylcellulose/hydroxypropyl methylcellulose blends

1987 ◽  
Vol 34 (7) ◽  
pp. 2507-2516 ◽  
Author(s):  
P. Sakellariou ◽  
R. C. Rowe ◽  
E. F. T. White
Keyword(s):  
Molecular Weight ◽  
Hydroxypropyl Methylcellulose ◽  
Diethyl Phthalate ◽  
Polyethylene Glycols ◽  
Low Molecular Weight

scholarly journals A study of the application of graphite MALDI to the analysis of short-chain polyethylene glycols

2021 ◽  
Author(s):  
Ulric Conway ◽  
Alexander D. Warren ◽  
Christopher J. Arthur ◽  
Paul J. Gates
Keyword(s):  
Molecular Weight ◽  
Lithium Chloride ◽  
Maldi Ms ◽  
Short Chain ◽  
Polyethylene Glycols ◽  
Low Molecular Weight ◽  
Colloidal Graphite ◽  
Graphite Matrix ◽  
Successful Analysis

MALDI-MS using colloidal graphite matrix doped with lithium chloride for the successful analysis of low molecular weight polymers.

Urine labeling with orally applied marker substances in drug substitution therapy

2004 ◽  
Vol 42 (6) ◽  
Author(s):  
Bernd Huppertz ◽  
Gisela Gauchel ◽  
Heribert Feiertag ◽  
Hermann Schweizer ◽  
Horst Krieger ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Oral Administration ◽  
Normal Values ◽  
Urine Samples ◽  
Outpatient Clinics ◽  
Polyethylene Glycols ◽  
Low Molecular Weight ◽  
Drug Addicts ◽  
Substitution Therapy ◽  
Marker Substances

AbstractThe compliance of 581 drug addicts attending six methadone substitution outpatient clinics was determined over a period of 18 months. Urine from these patients was labeled following oral administration of low molecular weight polyethylene glycols as marker substances. These substances were measured in approx. 5800 urine samples. A protocol for applying marker substances and ways to prevent substitution of urine samples were evaluated. Normal values for marker substances in urine were determined. The results suggest that this labeling procedure is a new diagnostictool to prevent manipulation of urine samples by drug addicts receiving substitution therapy.

scholarly journals Potential effects of low molecular weight phthalate esters (C16H22O4and C12H14O4) on the freshwater fish Cyprinus carpio

2017 ◽  
Vol 6 (4) ◽  
pp. 505-520 ◽  
Author(s):  
R. K. Poopal ◽  
M. Ramesh ◽  
V. Maruthappan ◽  
R. Babu Rajendran
Keyword(s):  
Molecular Weight ◽  
Toxic Effect ◽  
Freshwater Fish ◽  
Cyprinus Carpio ◽  
Dibutyl Phthalate ◽  
Phthalate Esters ◽  
Diethyl Phthalate ◽  
Low Molecular Weight

The aim of the present study is to assess the toxic effect of dibutyl phthalate (DBP) and diethyl phthalate (DEP) on the freshwater fishCyprinus carpio.

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