نتایج جستجو برای: indicator chemical
تعداد نتایج: 450704 فیلتر نتایج به سال:
Murexide, a reddish purple compound has the structure shown in Fig. 1. It has received much interest because of its application in chemical analysis and spectrophotometric fields [1, 2]. It is considered as the ammonium salt of purpuric acid and named as ammonium 2,6-dioxo-5-(2,4,6-trioxo-tetrahydro-pyrimidine-5-ylidene amino)-1,2,3,6-tetrahydro-pyrimidine-4-olate. It serves as a metal ion indi...
BACKGROUND A current challenge in bioprocessing is the ability to analyse critical quality attributes such as aggregation without prior purification. This study evaluated the use of fluorescent dyes (Bis-ANS, SYPRO Orange, Thioflavin T and ProteoStat) to characterise mAb aggregates in Chinese hamster ovary clarified cultures. RESULTS The null and mAb culture supernatants showed an increase in...
OBJECTIVE The decision to use in vitro fertilization (IVF), intracytoplasmic sperm injection (ICSI), or split insemination (IVF-ICSI) in the first cycle is based on the number of motile sperm. Hence, total fertilization failure (TFF) often occurs during IVF cycles, despite normozoospermia. To investigate whether the cumulative motile swim-up spermatozoa percentage at 22 hours post-insemination ...
Background and Aim: Healthcare networks in industrial areas are the main pillars of preventing and coping with chemical accidents and crises, which are of great importance in improving their level of resilience. In order to achieve this goal, it is necessary to apply a precise method for assessing and empowering these centers. The purpose of this study was to provide a resiliency pattern for th...
The effect of Helium (He) dilution on optical and photoelectric properties of hydrogenated amorphous silicon (a-Si:H) thin film samples prepared at substrate temperature of 75◦C with increased growth rate by plasma-enhanced chemical vapor deposition (PECVD) technique is studied using spectrophotometric (SP) and steady-state photocarrier grating techniques (SSPG). The values of refractive index,...
Estimation of ore reserves is one of the most critical aspects of mining geology. The accurate assessment of the tonnage and grade of run of mine may be the difference between a healthy profitable operation and an expensive early mine closure. The first step in ore reserve estimation is to determine the boundary of ore body or ore/waste contacts. This paper presents a specific mining applicatio...
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