TY - JOUR
T1 - A novel method for rapid non destructive determination of o/w creams stability
AU - Garti, N.
AU - Magdassi, S.
AU - Rubinstein, A.
PY - 1982
Y1 - 1982
N2 - A nonconventional method for evaluation of emulsion stability was developed. The method was found to be valid for viscous emulsions and results obtained are in good correlation to conventional methods compared. The technique is based on electrical conductivity measurements during nondestructive short heating-cooling-heating cycles carried out on cosmetic viscous emulsions. Conductivity curves were obtained on a recorder, where the second heating cycles were lower and almost parallel to the first heating curves. The bigger the conductivity differences between the two heating curves, the lower is the emulsion stability. A relative Stability Index Δh, indicating relative change in conductivity between two cycles was elaborated. This index was usefull in finding out - optimal required HLB values for required emulsion - optimal amount of oily phase - emulsifier concentration.
AB - A nonconventional method for evaluation of emulsion stability was developed. The method was found to be valid for viscous emulsions and results obtained are in good correlation to conventional methods compared. The technique is based on electrical conductivity measurements during nondestructive short heating-cooling-heating cycles carried out on cosmetic viscous emulsions. Conductivity curves were obtained on a recorder, where the second heating cycles were lower and almost parallel to the first heating curves. The bigger the conductivity differences between the two heating curves, the lower is the emulsion stability. A relative Stability Index Δh, indicating relative change in conductivity between two cycles was elaborated. This index was usefull in finding out - optimal required HLB values for required emulsion - optimal amount of oily phase - emulsifier concentration.
UR - http://www.scopus.com/inward/record.url?scp=0007327614&partnerID=8YFLogxK
U2 - 10.3109/03639048209022115
DO - 10.3109/03639048209022115
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AN - SCOPUS:0007327614
SN - 0363-9045
VL - 8
SP - 475
EP - 485
JO - Drug Development and Industrial Pharmacy
JF - Drug Development and Industrial Pharmacy
IS - 4
ER -