Swabs

Anodic stripping voltammetry at a mercury film electrode can be used to determine whether an individual has recently fired a gun by looking for traces of antimony in residue collected from the individual s hands, fn a typical analysis a sample is collected with a cotton-tipped swab that had been wetted with 5% v/v HNO3. When returned to the lab, the swab is placed in a vial containing 5.00 mb of 4 M HCl that is 0.02 M in hydrazine sulfate. After allowing the swab to soak overnight,... 

One such decontaminant is supertropical bleach (STB). STB is a mixture of chlorinated lime and calcium oxide containing about 30% available chlorine. It can be used either as a dry mix or as a slurry to decontaminate some equipment surfaces and terrain. The dry mix is prepared with two parts bleach to three parts earth by volume. A slurry typically consists of 40 parts STB to 60 parts by weight of water. This material is then sprayed or swabbed on the contaminated surface (see Bleaching agents). STB is an effective decontaminant for mustard, lewisite, and VX. It is less effective against nerve agents other than VX. 

This conversion is normally accompHshed by immersion, but spraying, swabbing, bmshing, and electrolytic methods are also employed (178) (see Metal SURFACE treatments). The metals that benefit from chromium surface conversion are aluminum, cadmium, copper, magnesium, silver, and 2inc. Zinc is the largest consumer of chromium conversion baths, and more formulations are developed for 2inc than for any other metal. 

In restaurant operations, steriliza tion of dishes is an additional requirement (see STERILIZATION TECHNIQUES). Steriliza tion is deterrnined by the usual swabbing and culturing methods or by employing bacteria tagged with radioactive phosphoms and counting residual radioactivity on the washed dishes (108). 

Reassess risk, if neeessary by environmental monitoring, swab tests. 

Wipe sampling involves swiping a dry or wet (use of a solvent or other liquid besides water in eommonplaee) eloth, glass fiber filter paper, or swab over the surfaee of a potentially eontaminated objeet and performing a laboratory analysis. Both the inner and outer surfaees of PPE should be tested to eheek for permeation. Skin ean also be tested using this wipe sampling [1]. 

This is a clear liquid that vaporizes and, on contact with damp air, combines with w ater to produce a dense acid mist. Titanium tetrachloride can be painted on to surfaces, such as fume cupboard sills, from which it will evaporate over a period of several seconds showing the airflow patterns close to the surface. (Airflow patterns close to a surface could also be visualized by fastening short filaments of wool or cotton to the surface). Titanium tetrachloride can also be used, when soaked onto a cotton swab, in a similar way to a smoke tube. It is a simple and inexpensive method but the production of smoke, which is toxic and corrosive, is uncontrollable. 

Indeed, great emphasis was placed on the presentation of compounds in crystalline form for many years, early chromatographic procedures for the separation of natural substances were criticized because the products were not crystalline. None the less, the invention by Tswett (3) of chromatographic separation by continuous adsorption/desorption on open columns as applied to plant extracts was taken up by a number of natural product researchers in the 1930s, notably by Karrer (4) and by Swab and lockers (5). An early example (6) of hyphenation was the use of fluorescence spectroscopy to identify benzo[a]pyrene separated from shale oil by adsorption chromatography on alumina. 

Schw., a61>re . (Sohweizferisch) Swiss. Schwabbel, m. swab mop. -lack, m. swab vamiah swab lacquer, schwabbeln, v.t. buff, polish (by buffing) ... 

Tupfer, m. pledget, tampon swab. Tupf-probe, /. spot test, drop test, -reaktion, /. spot reaction. 

Wischer, m. wiper rubber, duster, swab, sponge, (drawing) stump. 

After properly securing the wire rope in the drum socket, the number of excess or dead wraps or turns specified by the equipment manufacturer should be maintained. Whenever possible, a new wire rope should be run under controlled loads and speeds for a short period after installation. This will help to adjust the rope to working conditions. If a new coring or swabbing line is excessively wavy when first installed, two to four sinker bars may be added on the first few trips to straighten the line. 

Frequently produced by some type of overloading, such as an overload resulting in a collapse of the fiber core in swabbing lines. This may also occur in cable-tool lines as a result of concentrated pulsating or surging forces that may contribute to fiber-core collapse. 

Control mud weight to counter balance pore pressure. Keep fluid loss as low as possible. Keep viscosity and gel strength low to prevent swabbing. 

Swabbing action of bit withdrawal. MalnUln thin filter cake, low gels. Withdraw bit slowly. Check to we that hole le teking mud through the annulus. 

Coral reef. Dolomite. Fractured shales. Lost Circulation. Withdraw tooU slowly to prevent swabbing action. 

Brush plating is a special technique which dispenses with a container and uses a swab soaked in electrolyte applied to the work. In jet plating a stream of electrolyte is applied to the cathode. Both are methods of selective plating, applying an electrodeposit to only a part of an article. Little has been published about the techniques or the properties of coatings they produce. 

When a pinworm infection is suspected, the nurse takes a specimen from the anal area, preferably early in the morning before the patient gets out of bed. Specimens are taken by swabbing the perianal area with a cellophane tape swab. 

Stool specimens or perineal swabs are negative for parasites. 

Topical anesfliesia involves die application of die anes-flietic to die surface of the skin, open area, or mucous membrane The anesthetic may be applied wifli a cotton swab or sprayed on the area This type of anesthesia may be used to desensitize the skin or mucous membrane to the injection of a deeper local anesthetic. In some instances, topical anesthetics may be applied by the nurse ... 

B. Swab tiie mouth with lemon glycerin swabs every 4 hours. 

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