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Matrix interference attributed to urea and other nitrogenous substances in unprocessed urine is significant. In this study desorption ionization of sub-microliter volume samples is performed in an effort to improve the detection of drugs from unprocessed urine by Transmission Mode - Direct Analysis in Real Time - Mass Spectrometry (TM-DART-MS).
This article was published in the following journal.
Name: Rapid communications in mass spectrometry : RCM
Incorporating urine volume into adequacy assessment was recommended by The Paris System for Reporting Urinary Cytology. The concept was relatively new, however, and supportive studies were sparse. We ...
Bladder urine volume has been estimated using an ellipsoid method based on triaxial measurements of the bladder extrapolated from two-dimensional ultrasound images. This study aimed to automate this p...
Many clinical toxicology laboratories receive urine specimens in urine cups that contain point of care (POC) drug testing strips. We conducted this study to evaluate the effect on the stability of com...
Urine is an acceptable, non-invasive sample for investigating the human urogenital microbiota and for the diagnosis of sexually transmitted infections. However, low quantities of bacterial DNA and PCR...
In-tube solid phase microextraction (IT-SPME) coupled on-line to capillary liquid chromatography with diode array detection provides a simple and fast analytical methodology for the simultaneous quant...
This study assesses the effectiveness of targeted active case detection among high-risk populations in Southern Lao Peoples Democratic Republic (PDR). The investigators hypothesize that ac...
The aim of the study is to develop robust analytical protocols for first-void urine sample preparation and biomarker assays to analyze a panel of biomarkers in first-void urine for improve...
The aim of the study is to develop robust analytical protocols for first-void urine sample preparation and antibody assays to monitor vaccine induced immunity against HPV (Human Papillomav...
GSK Biologicals is working on the development of a vaccine to protect elderly people from bacterial pneumonia. Diagnostic of bacterial pneumonia is difficult, and for the future studies in...
The aim of the study is to develop robust analytical protocols for first-void urine sample preparation and antibody assays to monitor natural and/or vaccine induced immunity against HPV (H...
Detection of drugs that have been abused, overused, or misused, including legal and illegal drugs. Urine screening is the usual method of detection.
An immunoenzyme test for the presence of drugs and other substances in urine and blood. The test uses enzyme linked antibodies that react only with the particular drug for which the sample is being tested.
Abnormalities in the process of URINE voiding, including bladder control, frequency of URINATION, as well as the volume and composition of URINE.
A method of simultaneously imaging and measuring elements at the submicron level. Nuclear microscopy uses a focused high-energy ion beam of PROTONS and ALPHA PARTICLES (a nuclear microprobe) to interact with the sample. The resulting emitted radiations are analyzed by a group of techniques simultaneously: PARTICLE INDUCED X RAY EMISSION SPECTROMETRY for minor and trace element identification; Rutherford Backscattering Spectroscopy to assess sample thickness and bulk elements such as carbon, hydrogen, oxygen, and nitrogen; and Scanning Transmission Ion Microscopy to assess sample structure and density.
The number of PLATELETS per unit volume in a sample of venous BLOOD.
Benign Prostatic Hyperplasia (BPH) Erectile Dysfunction Urology Urology is the branch of medicine concerned with the urinary tract and diseases that affect it. Examples include urethritis, urethrostenosis and incontinence. Urology is a su...
Multiple Sclerosis MS
Multiple sclerosis (MS) is the most common disabling neurological condition affecting 100,000 young adults in the UK. The condition results from autoimmune damage to myelin, causing interference in nerve signaling. Symptoms experienced depend on the pa...