نتایج جستجو برای: stripping

تعداد نتایج: 6502  

Journal: :International Journal of Surgery 2007

Journal: :Nature Reviews Methods Primers 2022

Electrochemical stripping analysis (ESA) is a trace electroanalytical technique for the determination of metal cations, inorganic ions, organic compounds and biomolecules. It based on pre-concentration step target analyte(s), or compound target, suitable working electrode. This followed by accumulated analyte using an technique. Advantages ESA include high sensitivity low limits detection, mult...

Journal: :Acta poloniae pharmaceutica 2010
Mariusz Stolarczyk Anna Maślanka Anna Apola Jan Krzek

This is a review of analytical methods, such as spectrophotometry, derivative spectrophotometry and various chromatographic (gas chromatography-GC, high-performance liquid chromatography-HPLC, thin-layer chromatography-TLC, high-performance thin-layer chromatography-HPTLC, liquid chromatography-tandem mass spectrometry-LC-MS, microchip electrophoresis-MCE, capillary electrophoresis-CE) and elec...

Journal: :Chemical communications 2016
Junxiang Fu Le He Wenjing Xu Jianle Zhuang Xianfeng Yang Xiaozeng Zhang Mingmei Wu Yadong Yin

We report a "ligand stripping" method for the creation of secondary structures of colloidal nanocrystals. Using iron oxide as an example, we demonstrate that the use of diols as "stripping agents" allows the controllable removal of the original capping ligands and induces aggregation of nanocrystals into well-defined clusters.

2008
Xiaoxiang Wang

Moveout analysis of long-spread P-wave data is widely used to estimate the key time-processing parameter η in layered VTI (transversely isotropic with a vertical symmetry axis) media. Inversion for interval η values, however, suffers from instability caused by the tradeoff between the effective moveout parameters and by the subsequent error amplification during Dix-type layer stripping. Here, w...

2001
Brett C. McKusick Pierre-Guy Marnet Yves M. Berger David L. Thomas

Milk yield, milk flow, and udder morphology traits were measured in 72 East Friesian crossbred multiparous ewes to estimate the variation in milk flow patterns present in this research flock, and to asses the repeatability of these measurements and their relationships with other lactation traits. A special milk flow apparatus designed for dairy ewes was used on two consecutive morning milkings ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1390

دریزو فرایندی است برای افزایش خلوص گلایکول که معمولا از یک حلال هیدروکربنی استفاده می کند. این پروسه از کمک گاز عریانگر (stripping gas ) بی نیاز بوده و با هزینه کمتر می تواند گاز خشک با نقطه شبنم پایین تر را به وجود بیاورد. شرکت dow chemical co. توانست این پروسه را در سال 1970 به صورت رسمی به بازار معرفی کند. شرکت opc نیز این تکنولوژی را در سال 1985 به کار برد و با ارائه کارهای جدیدتردر این ...

Journal: :Archives of ophthalmology 2008
Ludwig M Heindl Carmen Hofmann-Rummelt Ursula Schlötzer-Schrehardt Friedrich E Kruse Claus Cursiefen

OBJECTIVE To investigate how precise Descemet stripping works in posterior lamellar keratoplasty (Descemet stripping automated endothelial keratoplasty [DSAEK]) for the treatment of corneal endothelial disorders. METHODS In a prospective, single-center, nonrandomized consecutive series, 20 Descemet membrane specimens obtained after Descemet stripping in DSAEK using a Price hook were examined ...

2010
Jan F. Maćkowiak Andrzej Górak

In this work modelling and experimental validation of an integrated process for the removal of carbon dioxide from ammonia solutions is presented (decarbonisation). In this process, carbon dioxide is stripped out from the solution simultaneously with small amounts of ammonia at ambient pressure in a packed column. Recovery of the stripped ammonia can be reached by combining absorption of ammoni...

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