Harrison test

Phillips, A.G. and D.P. Harrison, Gross Error Detection and Data Reconciliation in Experimental Kinetics, Indushial and Engineeiing Chemistiy Reseaieh, 32, 1993,2530-2536. (Measurement test)... 

A freshwater sponge (Ephydatia fluviatilis) grew normally at a concentration of 0.65 pg Zn/L, but growth was reduced at lower concentrations tested (Francis and Harrison 1988). Daphnids (Daphnia pulex, Daphnia magna) reared for six brood cycles in zinc-free water showed reduced survival, inhibited reproduction, and cuticle damage (Keating and Caffrey 1989). Zinc is important... 

Barrett KL, Grandy N, Harrison EG et al (1994) Guidance document on regulatory testing procedures for pesticides with non-target arthropods. SETAC, Brussels... 

Basketter, D.A., Scholes, E.W., Kimber, I., Botham, RA., Hilton, J., Miller, K., Robbins, M.C., Harrison, P.T.C. and Waite, S.J. (1991). Interlaboratory evaluation of the local lymph node assay with 25 chemicals and comparison with guinea pig test data. Toxicol. Methods 1 30-43. 

Equation (10) has been tested for the data of a large number of investigators. The data are plotted in Fig. 9 along with the Davidson and Harrison line (D6). The agreement is good enough to obtain approximate values, though in most of the cases the theoretically predicted volumes are smaller than those obtained experimentally. 

The authors have tested this equation with the data of Harrison and Leung (H3) and those of Bloore and Botterill (B5) and found a reasonably satisfactory agreement between the experimental and the calculated values. 

Hopwood JJ, Harrison JR (1982) High-resolution electrophoresis of urinary glycosaminoglycans an improved screening test for the mucopolysaccharidoses. Anal Biochem 119 120-127... 

Rogers and Harrison [103] tried to determine the conditions governing this phenomenon, i.e. the explosion during the growth of /Mead azide. Their experiments, which are illustrated diagrammatically in Fig. 46, were carried out in a test-tube. Three solutions were carefully introduced so that they did not mix. The bottom layer consisted of 20% lead nitrate (2 cm3). The middle layer was 20% sodium nitrate (1 cm3). The top layer was 10% sodium azide (2 cm3). Crystals of lead azide formed in the sodium nitrate layer after ihr. They appeared to start from the walls and spread inwards. A major explosion generally occurred in the system after the crystals had been growing for 6-12 hr. A series of very small explosions accompanied by clicks sometimes preceded the major explosion. 

B. K. Harrison, CHETAH 7.2, The ASTM Computer Program for Chemical Thermodynamic and Energy Release Evaluation (also available as NIST Special Database 16) available from American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959. See also http //www.chetah.usouthal.edu/. 

In 1959 Harrison and Gilroy (3) demonstrated the detectability of barium, antimony and lead in firearm discharge residue using a specific "spot" test for each element. Inadequate colorimetric sensitivity for barium and antimony (I4.) has severely restricted the use of the method as a field tool. 

In 1959, Harrison and Gilroy introduced a method based on the detection of the metal-containing components of FDR.124 The metallic components involved, namely, lead, antimony, and barium, originate from the primer and the bullet (lead and antimony). The method is based on colorimetric spot tests and involves swabbing the suspect s hands with cotton cloth damped with 0.1 M hydrochloric acid. The swab is allowed to dry and is then tested with one or two drops of a 10% alcohol solution of triphenylmethylarsonium iodide. The appearance of an orange ring indicates the presence of antimony. 

Marks and Rifkind (1978) have reviewed the characteristics of the induced differentiation and listed the large variety of inducers (e.g. butyric acid, hemin, ouabain) which may be used in place of dimethylsulphoxide. However, not all these inducers produce the same effects in all the clones tested and some DMSO resistant variants exhibit different phenotypes (Harrison et al., 1978). The most commonly used inducers are DMSO and HMBA (hexamethylene bi-sacetamide). 

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