comparison of two dislodgable residue extraction methods

dislodgable or easily removed surface insecticide residues on cotton are an important aspect in establishing safe reentry intervals for personnel working in treated fields. this paper reports on a study that was done as an attempt to resolve the ongoing analytical question of which method of extraction is best for establishing dislodgable..

removal of pesticide residues as affected by laundering variables

to conserve energy, consumers are now encouraged to launder clothing at as low temperatures as possible. use of lower wash temperature may adversely affect removal of pesticide residues. a survey of literature related to the use of pesticide revealed no research concerning the removal of pesticides commonly used with corn and soybeans. as..

effectiveness of detergent and detergent plus bleach for decontaminating pesticide applicator clothing

a significant amount of pesticide residue can be removed from contaminated clothing with home laundering techniques. two washings in 60 $degree$ c washwater with high alkaline detergent and bleach have been recommended for removing methyl parathion residues. the degree of methyl parathion removed can be increased by prerinsing the contami..

waveguide type optical isolator using faraday and cotton-mouton effects in bi-substituted yig thin films

the propagation and mode conversion properties of optical waves in film waveguides made of magnetooptical materials such as garnet crystals are studied in order to construct optical thin-film isolators using magnetooptical effects. gyrotropic yig films are fabricated on ggg crystal substrates by the rf sputtering method faraday effects in..

structure of microemulsions from magnetic and electric birefringence measurements

magnetic and electric birefringence experiments were performed on microemulsions of na octylbenzene sulfonate (obs) -pentanol-decane-water (with 0. 3 nacl), in the homogeneous liquid region of the pseudo-ternary diagram. the cotton-mouton constant is related quantitatively to the structure of the microemulsion. it is discussed in terms of..

effect of detergents on wear and appearance characteristics of cotton broadcloth

cotton fabrics are vulnerable to laundering conditions. the effects of commonly used household laundry detergents on cotton broadcloth have been investigated. laundry abrasion and the deterioration of appearance characteristics are the key factors in determining service life of washable fabrics. laundry conditions and chemical finishes, h..

effect of temperature factors on the optical properties of undyed fabrics

the results of investigations of the relation of the absorption coefficient (a) in the region of 380-800 nm to the heating temperature of the following undyed fabrics: cotton 508, rayon 72, 110, silk 11,022, and capron 52,001 at t//1 $equals$ 110 $degree$ c, t//2 $equals$ 150 $degree$ c, and t//3 $equals$ 190 $degree$ c are presented. mea..

some comments on the resistance experienced by a porous sphere moving in a viscous incompressible fluid at low reynolds numbers

the formulas for viscous drag force experienced by a porous sphere falling in a viscous fluid at low reynolds numbers which have been given by several authors are compared with one another and with the stokes formula. the problem in applying these formulas to real porous media is discussed. it is shown that in many cases of $left double q..

whiteness retention and wear life of laundered or dry-cleaned white polycot uniforms

this study was undertaken to investigate the effectiveness of industrial dry cleaning and laundering using phosphate- and carbonate-built detergents on whiteness retention of in-service hospital uniforms of 65/35 polyester/cotton (polycot) blended fabric treated with a durable-press (dp) finish. 25 launderings with phosphate-built deterge..

comparison of phosphate and carbonate built detergents for laundering polyester/cotton

service wear trials were conducted to evaluate the performance of white hospital uniforms made of durable press treated 65/35 and 50/50 blends of polyester/cotton. the uniforms were worn and then commercially laundered 25 times using phosphate and carbonate built detergents. laundering with phosphate detergent resulted in significantly hi..