For each run, serotonin and DHBA
standards were processed to identify retention times and to confirm the serotonin elution peak from samples.
, a widely used internal standard for the determination of catecholamines, would not be easy to replace, but minor modifications of the method might be beneficial and must be developed.
With CMFR treatments, the addition of DHBA
to the iron would change the fibers purple to dark brown in color.
Since 1989, all of the major systems software vendors have relied on DHBA
evaluations of operating system features and functional capabilities as independent verification for their internal competitive assessments.
was quantified at 670 mV, DHPPA at 570 mV, and SyrA at 380 mV.
Abbreviations: [alpha]-MMT, [alpha]-methyl-DL-m-tyrosine; CI, coral inducer; DA, dopamine; DHBA
, dihydroxybenzylamine; DOPAC, dihydroxyphenylacetic acid; FaGlu, formaldehyde-glutaraldehyde; HPLC, high performance liquid chromatography; L-DOPA, L-3, 4-dihydroxyphenylalanine; MBL-ASW, MBL artificial seawater; NE, norepinephrine; PBS, phosphate-buffered saline; TH-LIR, tyrosine-hydroxylase-like immunoreactive.
Commercial methods (Chromsystems) elute norepinephrine, epinephrine, DHBA
, and dopamine at 8, 9, 12-13, and 17-19 min, respectively.
The recovery efficiency of the DHBA
internal standard (64%-68%) was calculated for each extraction and used to correct the endogenous catecholamine data from that extraction.
was added, as an internal control, at the time of extraction of ink samples being prepared for electrochemical detection (see below).
According to the report's author, Pierre Fricke, EVP and Service Director DHBA
, "Linux stands out as an industry phenomenon because of its rapid growth and its acceptance by enterprise customers, industry pundits, and even the financial analyst community as a mainstream information technology.
Linux has long made a good fit with certain key applications, such as entry file- and print-sharing or web servers, appliances, Internet Service Provider infrastructures, and compute nodes in technical computing clusters," said Tony Iams, Vice President of Systems Software and Operating Environments for Industry-Standard Servers Research at DHBA
PLM Road Map Conference brings together officers and senior managers from leading global manufacturers to discuss the adoption and implementation of advanced methodologies in the manufacturing value chain.