(1) Total free amino acids in the leaf extracts and in the phloem exudate were analysed with the ninhydrin reagent .

(2) There is no standard chemical reagent available that has this skeletal form - it must be constructed from scratch.

(3) More to the point, it has facilitated many reactions that depend upon acetic acid as a reagent or solvent.

(4) This compound is a very sensitive reagent for copper

(5) Ozone is a strong electrophilic reagent which can attack the double bond found in alkenes.

(6) The direction to use concentrated hydrochloric acid, a bench reagent , necessarily involved the addition of some water.

(7) After coating the glass with a silane reagent containing aldehyde groups, they used Schiff's base chemistry to immobilise the protein molecules.

(8) Nitrate was analysed in the same material using salicylic acid as a reagent .

(9) Vapors from chemical warfare agents are converted to ions by a chemical-ionization reagent gas.

(10) In addition, alkyl groups may correspond to reagents and intermediates in organic chemistry.

(11) All other chemicals and reagents used were of the highest grade commercially available.

(12) The second phase comprises an organic solvent containing soluble reagents such as olefins.

(13) All chemicals and reagents were of the highest purity available.

(14) In addition, the organic components of adjacent threads, particularly wool, can act as a source of corrosive reagents .

(15) Over several centuries, they developed the ability to produce a number of important chemical reagents .

(16) But what happens to a chemical reaction if the reagents are not in an ideal ratio?

(17) This method resulted in an almost instant purification of molecules, using filtration to separate the chemical reagents from the products.

(18) There are literally hundreds of reagents not discussed here that can be categorized as electrophiles.

(19) Agglutination reaction was carried out using the reagents with the stool supernatants.

(20) When the catalyst is dissolved in the same solvent as the reagents , getting the catalyst back can be a difficult matter.