Results 101 to 110 of about 6,296 (209)

A study of reactions of chloretone [PDF]

open access: yes, 1951
Call number: LD2668 .T4 1951 C6Master of ...
Collier, Theodore James.
core  

Determination of Soluble Phosphorus Content in Black Walnut Husk Compost via Formation of Molybdenum Blue [PDF]

open access: yes, 2010
Author Institution: Chemistry Department, University of Rio GrandeWalnut fruit husk compost is a by-product of the commercial processing of walnuts. These outer husks collect into generous size piles and are normally left to decompose.
Crosier, Joshua D., White, Jacob J.
core  

Heteropolyacids@Silica Heterogeneous Catalysts to Produce Solketal from Glycerol Acetalization

open access: yesNanomaterials
The composites of heteropolyacids (H3PW12, H3PMo12) incorporated into amine-functionalized silica materials were used for the first time as heterogeneous catalysts in the valorization of glycerol (a major waste from the biodiesel industry) through ...
Catarina N. Dias   +4 more
doaj   +1 more source

Prarancangan Pabrik Akrilonitril Dari Amoniak, Propilena Dan Udara Dengan Kapasitas 10.000 Ton/Tahun [PDF]

open access: yes, 2013
Akrilonitril disebut juga vinil sianida atau propen nitril merupakan salah satu bahan kimia dalam industri. Akrilonitril merupakan bahan kimia yang banyak kegunaannya yaitu sebagai bahan tambahan dalam industri resins, termoplastik, bahan tambahan dalam ...
, Eni Budiyati, S.T., M.Eng   +2 more
core  

Spectrophotometric determination of aminopyrine with phosphomolybdic acid.

open access: yesBUNSEKI KAGAKU, 1964
アミノピリンの還元性を利用して,リンモリブデン酸によるアミノピリンの比色定量法を確立した.至適条件は最終検液濃度7.5μg/mlで,検液調整時に炭酸水素ナトリウム飽和溶液を加えてアルカリ性とした検液10mlに15%リンモリブデン酸溶液1mlを加え,60分間放置後800mμで測定する.また,スルピリンによる妨害の除去法について検討し,アセチル化操作を加えることにより目的を達した.通常の感冒薬に配合される40種の薬品の影響について検討した.製剤分析として注意を要するものは,リン酸コデインのみであった.正確に調製したモデルサンプル,および市販製品に適用したところ良好な結果を得た.
Akio TSUJI, Akitada NAKAMURA
openaire   +2 more sources

Sixteen-Letter Transposal Pairs [PDF]

open access: yes, 1981
Long transposal pairs, especially those in which the letters of one word must be thoroughly rearranged to form the other, have always fascinated logologists; in the February 1976 issue of Word Ways, I presented a list of well-mixed transposal pairs of 13
Eckler, A. Ross
core   +1 more source

A Purification of venom phosphodiesterase [PDF]

open access: yes, 1952
For purposes of analysis of polynucleotides, it is desirable to have a phosphodiesterase, substantially free of 5-nucleotidase or other phosphatase activity.
Koerner, James F., Sinsheimer, Robert L.
core  

Impact of river management history on the community structure, species composition and nutrient status in the Rhine alluvial hardwood forest [PDF]

open access: yes, 1998
The present-day Rhine alluvial hardwood forest (Querco-Ulmetum minoris, Issler 24) in the upper Rhine valley (France/Germany) is comprised of three vegetation units, one still flooded by calm waters (F) and the two others unflooded, one for 30 years ...
Sanchez-Pérez, José-Miguel   +3 more
core   +2 more sources

Nutrients in waters on the inner shelf between Cape Charles and Cape Hatteras [PDF]

open access: yes
The distribution of nutrients in the shelf waters of the southern tip of the Middle Atlantic Bight was investigated. It is concluded that the outflow of freshwater from the Chesapeake Bay is a potential source of nutrients to the adjacent shelf waters ...
Todd, J. F., Wong, G. T. F.
core   +1 more source

Study of Digestion Efficiency on Spectrophotometric Determination of Phosphate in Water Sample by Flow Injection Analysis [PDF]

open access: yes, 2012
A method suitable for the determination of phosphate in water samples is presented. The flow injection (FI) manifold contain a PTFE reaction coil wrapped around a low power UV lamp and is based on the spectrophotometric determination of Orthophosphate ...
Lelifajri, L. (Lelifajri)
core  

Home - About - Disclaimer - Privacy