Electron capture detector (ECD). Electron capture detectors (ECD) are typically used in environmental testing for detecting PCBâs, organochlorine pesticides, herbicides and various halogenated hydrocarbons. With an electron capture detector, a beta emitter such as radioactive tritium or 63Ni is used to ionize the carrier gas.
Las Piedras: Las Piedras, city, southern Uruguay. It is situated in a wine-growing district just north of Montevideo. It was the site of a decisive battle (1811) in Uruguayâs struggle for independence, in which the revolutionaries defeated Spanish forces. Las Piedras is among the largest cities in Uruguay. It is known for its ostrich farming and horse racing. Las Piedras is on the main highway and railroad linking Montevideo with TacuarembÃ³ and Rivera. Pop.
Chanca piedra can be used to treat the following conditions: Kidney stones-Translated in Portuguese, quebra pedra or chanca piedra means stone breakerâ. For years, the herb has been used to treat urinary tract infections and kidney stones throughout tropical South America.nown in ayurvedic medicine as phyllanthus, qubra pedra or chanca piedra as it is more commonly referred to as is a tropical plant that is often called âkidney stone treeâ; although it is in fact an herb and not a tree.