AN INVESTIGATION OF SEMI-MICRO KJELDAHL METHODS

1934 ◽  
Vol 10 (1) ◽  
pp. 73-76 ◽  
Author(s):  
J. A. Scarrow ◽  
C. F. H. Allen
Keyword(s):  
Hydriodic Acid ◽  
Micro Scale ◽  
Kjeldahl Method ◽  
Preliminary Reduction

It is shown that the estimation of nitrogen by the Kjeldahl method on a semi-micro scale is more sensitive to variations in procedure than the corresponding macro method.Several methods of preliminary reduction, recommended for certain types of compounds, have been found difficult to adapt to semi-micro work. A method of reduction, involving use of hydriodic acid and phosphorus, has been developed for many such compounds.

Embedding arrays of microspheres with optical trapping for micro scale device manufacture

2010 ◽  
Author(s):  
J. Croft ◽  
S. P. Edwardson ◽  
C. J. Williams ◽  
O. J. Allegre ◽  
G. Dearden ◽  
...  
Keyword(s):  
Optical Trapping ◽  
Micro Scale

Biocatalytic Ketone Reductions Using Biobeads

2020 ◽  
Author(s):  
Jia Shen Chew ◽  
Ken Chi Lik Lee ◽  
THI THANH NHA HO
Keyword(s):  
Enzyme Immobilization ◽  
High Throughput ◽  
High Throughput Screening ◽  
Chiral Hplc ◽  
Micro Scale

<p>Lee and coworkers offers a kind of new concept to enzyme immobilization and explores its suitability in the context of miniaturisation and high-throughput screening. Here, polystyrene-immobilized ketoreductases are compared with its non-immobilized counterparts in terms of conversion and stereoselectivity (both determined by chiral HPLC), and the study indicates that the BioBeads perform similarly (sometimes slightly more selective) which may be useful whenever defined micro-scale amounts of biocatalysts were required in high-throughput experiment settings.</p>

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