In the routine thyrotropin assay based upon the depletion of iodine in the chick thyroid gland following thyrotropin injections, a rapid micromethod for the determination of iodine was desirable. Elmer (1) gives an excellent critical review of the existing methods for iodine determination up to 1936. Kirk (2) reviews the present methods and techniques for microanalysis, including iodine. The me...

Release of reactive (phosphate-like) phosphorus (P) from freshwater sediments represents a significant internal P source for many lakes. Hypolimnetic P release occurs under reducing conditions that cause reductive dissolution of ferric hydroxide [Fe(OH)3]. This hypolimnetic P release may be naturally low or artificially reduced by sediment with naturally high or artificially elevated concentrat...

Bones from porphyric animals are treated first with 40% sodium hydroxide and subsequently with concentrated hydrochloric acid which dissolves the chalky residue from the alkaline digestion under violent foaming. The porphyrins are precipitated from the acid solution at pH ca. 3 together with calcium salts and subsequently washed and dissolved in about 50% acetic acid. The solution is then dilut...

Calcinosis cutis (CC) is defined as the deposition of calcium salts in the skin. The condition is divided into 5 types: calciphylaxis and dystrophic, metastatic, idiopathic, and iatrogenic CC. Dystrophic CC is the most common form and usually occurs in association with autoimmune diseases. CC can be treated surgically or with the use of drugs such as diltiazem, bisphosphonates, warfarin, ceftri...

–Flyash based geopolymer concrete is introduced in 1979 by Davidovits to reduce the use of OPC in concrete. Geopolymer is an inorganic alumino-hydroxide polymer synthesized form predominantly silicon and aluminum materials of geological origin and by product materials such as flyash (with low calcium). In this paper an attempt is made to study strength properties of geopolymer concrete using lo...

Camptothecin were first introduced in the early 1970’s, formulated in sodium hydroxide to enhance solubility, in clinical trials but was terminated due to a lack of clinical antitumor activity and a significant incidence of hemorrhagic diarrhea and uroepithelial toxicity [1]. These unexpected toxicities are believed to have been due to instability of camptothecin, which exists as biologically i...

A low-cost and facile route to the synthesis of bimetallic glycolato zirconate (Na2Zr(C2H4O2)3) and homometallic glycolato cerate (Ce(C2H4O2)), which can be used as alkoxide precursors for sodium zirconium oxide (and/or zirconia by sol–gel process) and ceria materials, has been developed from the reaction of inexpensive starting materials via the oxide one-pot synthesis (OOPS) process. Both com...

In this research, the reactive absorption of carbon dioxide in an aqueous solution of NH3, H2O, and NaOH has experimentally been investigated. The experiments were carried out in an absorption pilot plant in different operational conditions. The composition and temperature of both gas and liquid phases were obtained during the column height. The concentration of molecular ...

Background: Several adjuvants have been evaluated for vaccine formulations but alu-minum salts will continue to be used for many years due to their safety, low cost and adjuvanticity with different antigens. Two commonly used aluminum adjuvants, alumi-num hydroxide and aluminum phosphate have different adjuvanticity properties. Com-mercial recombinant protein hepatitis B vaccines containing alu...

Sovelli (1) described a color reaction for menadione, in which the compound was reacted with 2,4-dinitrophenylhydrazine, after which sodium hydroxide was added to alka1init.y. The green-colored product formed was extracted from the mixture with butyl alcohol. Attempts (24) have been made to apply this reaction quantitatively with variable results. Poor sensitivity, among ot)her things, was the ...