28 analytical & laboratory equipment
pH-stat in tHeory and practice in pHarmaceutical and biomedical industries
t
he study of the kinetics of a chemical concern chemical reactions that free or reaction based on the consumption of
reaction over time is one of the consume H3o+ or oH- ions. obviously, their reagent required to keep the pH constant
simplest and quickest ways of measuring speed of formation depends on operating over time.
the efficiency of active ingredients in drugs conditions, in particular the pH of the as pH-stat is frequently used for
for the pharmaceutical industry. reactive media. to study this, it is therefore analytical control especially in the
the most common examples are important to keep the pH of the reactive pharmaceutical and biomedical industries,
the measurement of enzyme kinetics media stationary. this is what is known as radiometer analytical has decided to
and the activity of antacid products. pH-stat. share its technical expertise in the subject
However, there are many other examples a pH-stat study takes place as by producing a free theory and practice
of chemical reactions versus time in follows: guide. u
organic and mineral chemistry such as u determining an optimum value for the
enter 28 or ✔ at www.scientistlive.com/elab
the measurement of the dissolution rate of pH of the studied reaction,
fertilisers or the solubility of an additive to u Keeping the pH constant by adding a Radiometer Analytical SAS is based in
cattle feed to test its digestibility. reagent to neutralise oH- or H3o+ ions. Villeurbanne, France.
the vast majority of reaction kinetics u calculating the kinetics of the studied www.radiometer-analytical.com/free
medical imaging equipment oems can acHieve faster results
t
exas instruments has announced a improved images equal better diagnoses the richness of 3d foetal modelling for
portfolio of more than 15 dedicated and care response. clinical analysis and enable effective
embedded processors which enable faster, in addition to enabling improved 4d cardiovascular applications. dlp
more accurate results for doctors and images, ti’s processors and high- technology eliminates 'bad sticks'
clinicians while empowering imaging performance analog products also by allowing the patient’s veins to be
equipment manufacturers to develop new positively impact the speed of care. many highlighted and easily viewed.
modalities or to make existing products of ti’s integrated circuits for medical addressing many challenges facing
smaller and more portable. imaging offer exceptional performance at imaging oems, ti begins with the signal
these processors target several very low power and in ultra-small form chain — taking the analogue signal
medical imaging applications including factors, enabling equipment manufacturers captured by the machine, digitising it for
ultrasound, computed tomography (ct), to turn large, fixed machines into portable analysis and then converting it back to
positron emission tomography (pet), or handheld devices. analogue for viewing by the physician or
magnetic resonance imaging (mri), digital portable imaging machines can travel clinician.
x-ray, optical coherence tomography (oct) directly to the patient – whether in an surrounding the signal chain, ti also
and other newly developed modalities. ambulance, in remote locations or in provides power management, clocks,
the processors join with ti’s full range trauma and triage settings — improving interface, amplifiers and data converters,
of catalogue and application-specific the overall speed and effectiveness of resulting in the broadest semiconductor
analog products to deliver a complete delivering treatment. portfolio products available for all medical
signal chain solution and help increase the embedded processors, as well as ti’s imaging modalities.
speed and availability of care to millions of dlptm technology, also give manufacturers ti’s embedded processors range from
people around the world. tools for new imaging modalities. high-performance multicore devices to very
embedded digital signal processors are new techniques such as tissue low- power products that meet the imaging
flexible, programmable devices that can be elasticity imaging, hyperspectral imaging, equipment manufacturers’ needs.
field upgraded with the updated software adaptive patient-specific imaging and for example, ti’s numerous multicore
and algorithms. 3d/4d imaging and vein viewing all products offer significant computational
universities, programmers and r&d leverage the numerous capabilities of performance required by oems for high-
centres continually develop new algorithms high performance, low power devices end imaging modalities. High-performance
to improve the clarity, depth and usefulness from ti. single-core processors such as the
of diagnostic images. for example, real-time, patient-specific tms320c6455 and tms320c6452 are well-
With ti’s extensible processors, these tissue elasticity images can be achieved suited for imaging modalities requiring
new algorithms can be easily uploaded to with new algorithms developed specifically real-time operations such as ultrasound,
field-deployed machines. for ti’s processors, delivering optimal digital x-ray, oct, hyperspectral imaging
for equipment manufacturers, these diagnostics. and other emerging applications. u
rapid updates lengthen the life of their for 3d/4d imaging, which requires
installations, while improving machine a tremendous amount of real-time For more information, visit
functionality. for clinicians and patients, processing, ti’s processors improve www.ti.com/medicalimaging
www.scientistlive.com
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