To date, enzymatic diagnosis of Gaucher’s disease via a fluorometric assay procedure which utilizes 4-methylumbelliferyl-P-D-glucopgranoside as a substrate has not been possible when liver serves as the source of enzyme since currently employed fluorometric procedures cannot adequately differentiate between a broad-specificity fl-glucosidase and lysosomal glucocerebrosidase activities in crude ...

We report mixed carbonates as enzyme substrates and demonstrate their application as fluorogenic probes for lipase and esterase enantiopreference screening. By the application of pseudoenantiomers with distinct fluorescence behaviors, it is possible to evaluate the activity and enantiopreference of hydrolytic enzymes. In order to validate our method, enantioselectivities calculated from fluorom...

We report a quick, easy and inexpensive fluorometric assay that measures the activity of replication enzymes using PicoGreen. The systems tested include replication of the natural template M13 Gori by E. coli DNA polymerase III holoenzyme and the replication of a synthetic homopolymer by human immunodeficiency virus reverse transcriptase. A direct comparison of the fluorometric assay with the ...

We report a quick, easy and inexpensive fluorometric assay that measures the activity of replication enzymes using Pico-GreenTM. The systems tested include replication of the natural template M13 Gori by E. coli DNA polymerase III holoenzyme and the replication of a synthetic homopolymer by human immunodeficiency virus reverse transcriptase. A direct comparison of the fluorometric assay with th...

An enzymatic fluorometric assay for pyridoxal with pyridoxal dehydrogenase was developed. The detection limit was about 10 pmol: the calibration curve of pyridoxal showed high linearity (r=0.993). The values obtained by this method correlated well with those by the HPLC method. The enzyme had a high specificity for pyridoxal, and thus animal samples could be directly analyzed without separation...

1. Stabler, T. V., and Siegel, A. L., Rapid liquid-chromatographic/fluorometric method for taurine in biological fluids, involving prederivatization with fluorescamine. Gun. Chem. 27, 1771 (1981). Letter. 2. Larsen, B., Grasso, D., and Chung, S., A rapid method of taurine quantitation using high performance liquid chromatography. J. Chromatogr. Sci. 18, 233-236 (1980). 3. Connolly, B. M., and G...

A simple automated fluorometric method for the estimation of lactate and pyruvate is described. Analyses can be performed at 60/hour and can conveniently determine pyruvate and lactate in the ranges 0-5 mg. and 0-30 mg/100 ml. The methods give a high degree of analytical precision and good yields from recovery experiments.

An automated fluorometric microtechnic, suitable for screening purposes, has been developed for the quantitative determination of glucose-6-phosphate dehydrogenase (G6PD) and 6-phosphogluconate dehydrogenase (6PGD) levels in red blood cells. The method is rapid, simple, and precise. It uses 50 p.I whole-blood (cpillary) samples and is based on the measurement of natural fluorescence emitted by ...

We describe a fluorometric method for screening and quantifying porphyrins in stool. A small sample of stool is extracted with concentrated HCI and is diluted 200-fold in 3 mol/L HCI before analysis. An excitation scan is done from 350 to 450 nm, monitoring emission at 603 nm. Total porphyrin is estimated at the isosbestic point for coproporphyrin and protoporphyrin (402.5 nm). Monitoring emiss...