Also, the pattern of peaks will be constant for a sample under constant conditions and can identify complex mixtures of analytes.

Absolute concentrations of trace compounds present in air, breath or the headspace of bottled liquid samples can be calculated in real time from ratio of the precursor and product ion signal ratios, without the need for sample preparation or calibration with standard mixtures.

Relative to other methods of analysis, powder diffraction allows for rapid, non-destructive analysis of multi-component mixtures without the need for extensive sample preparation.

Some of the more well known include the lesions containing pseudo-sarcomatous components: spindle cell carcinoma ( containing elongated cells resembling connective tissue cancers ), giant cell carcinoma ( containing huge, bizarre, multinucleated cells ), and sarcomatoid carcinoma ( mixtures of spindle and giant cell carcinoma ).

ABS is an excellent method to employ for the extraction of proteins / enzymes and other labile biomolecules from crude cell extracts or other mixtures.

The naming of various substances now known as elements precedes the atomic theory of matter, as names were given locally by various cultures to various minerals, metals, compounds, alloys, mixtures, and other materials, although at the time it was not known which chemicals were elements and which compounds.

Riveted joints were often kept tight by using various mixtures, for instance a dough made of rye flour.

If flammable gas mixtures were present, the flame of the Davy lamp burned higher with a blue tinge.

The first reference to the incendiary properties of such mixtures is the passage of the Zhenyuan miaodao yaolüe, a Taoist text tentatively dated to the mid-9th century AD: " Some have heated together sulfur, realgar and saltpeter with honey ; smoke and flames result, so that their hands and faces have been burnt, and even the whole house where they were working burned down.

These, however, were different mixtures and not the Byzantine formula, which was a closely guarded state secret, a secret that has been lost.

They could not yet produce pure samples of all the rare-earth elements, even in the form of their salts, and in some cases they were unable to distinguish between mixtures of two very similar ( adjacent ) rare-earth elements from the nearby pure metals in the Periodic Table.

The claimed new elements pelopium, ilmenium and dianium were in fact identical to niobium or mixtures of niobium and tantalum.

Fumes from burning sulfur were used as fumigants, and sulfur-containing medicinal mixtures were used as balms and antiparasitics.

These breccias were emplaced as gas – solid mixtures and are typically preserved and mined in diatremes that form intrusive pipe-like structures.

Pies were created from such mixtures of sweet and savoury foods ; in Tudor England, shrid pies ( as they were known then ) were formed from shredded meat, suet and dried fruit.

Commercial PCB mixtures were marketed under the following names.

PCBs, originally termed " chlorinated diphenyls ," were commercially produced as complex mixtures containing multiple isomers at different degrees of chlorination.

In electrical equipment manufacturing in the USA, Aroclor 1260 and Aroclor 1254 were the main mixtures used before 1950 ; Aroclor 1242 was the main mixture used in the 1950s and 1960s until it was phased out in 1971 and replaced by Aroclor 1016.

In Nashville, pregnant women were given radioactive mixtures.

Until his discovery, liquid perfumes were mixtures of oil and crushed herbs or petals, which made a strong blend.

During this era, myriad other terms ( such as mulatto and zambo ) were used to differentiate racial mixtures.

The dry concrete mixtures used by the Romans were compacted with rams to eliminate voids, and added animal blood acted as a water reducer.

... the famous mixtures of herbes de Provence ... were unknown to

It was in the 1970s that standard mixtures were formulated by spice wholesalers, including notably Ducros in France ( now part of McCormick & Company ).

It appears, by a vast number of experiments made at Peking, that its colour is owing to no mixture ; on the contrary, all mixtures diminish its beauty, for, when it is rightly managed it looks exactly like silver and were there not a necessity of mixing a little tutenag or such metal to soften it, it would be so much more the extraordinary as this sort of copper is found no where but in China and that only in the Province of Yunnan ".

No detectable reaction was found at room temperature for reaction mixtures allowed to stand up to 5 hours.

Properly designed concrete mixtures that have been allowed to cure properly are effectively impervious to the effects of deicers.

During the sessions began the first disagreements between the band, Lyon Caco not stand apathy Jorge, and left the session, leaving the job to his assistant Antonio Gildemeister, who just a rookie to make the recordings and mixtures so the sound is sucio. 30 Caco said that the disk is very messy and relleno. 31 The album was released on December 3 that year. Cover of La cultura de la basura He sold 10 000 copies in advance sales, 24 but did not surpass the success of Pateando piedras, making only sell 70 000 copies, 5 being considered by critics as an artistic and commercial failure of the band, " but it was still a double platinum ', commented ironically on eso.

In early 1945, the U. S. army ran tests of various 2, 4-D and 2, 4, 5-T mixtures at the Bushnell Army Airfield in Florida, which is now listed as a Formerly Used Defense Site ( FUDS ).

Either in its pure forms, or in various chemical compounds or mixtures, almost every element has at least one important human use.

Portland cement blends are often available as inter-ground mixtures from cement manufacturers, but similar formulations are often also mixed from the ground components at the concrete mixing plant.

In 1966, Joel E. Goldmacher and Joseph A. Castellano, research chemists in Heilmeier group at RCA, discovered that mixtures made exclusively of nematic compounds that differed only in the number of carbon atoms in the terminal side chains could yield room-temperature nematic liquid crystals.

The existence of this debate demonstrates that, at the time, the distinction between pure chemical compounds and mixtures had not yet been fully developed.

Whereas most small molecule solutions exhibit only an upper critical solution temperature phase transition, at which phase separation occurs with cooling, polymer mixtures commonly exhibit a lower critical solution temperature phase transition, at which phase separation occurs with heating.

Blue sapphire exists in various mixtures of its primary ( blue ) and secondary hues, various tonal levels ( shades ) and at various levels of saturation ( vividness ).

Other cheese mixtures are used as well, some containing raw eggs, and others containing no eggs at all.

Methane-air mixtures become flammable only when the methane concentration exceeds 5 %, at which point the mixtures also become explosive.

A narrow band of alluvial soils is found all along the east coast and at the mouths of the major rivers on the west coast ; clay, sand, and limestone mixtures are found in the west ; and shallow or skeletal laterite and limestone are located in the south.

Total vapor pressure of mixtures as a function of composition at a chosen constant temperature.

Because they are mixtures, naturally produced waxes are softer and melt at lower temperatures than the pure components.

Research, by David Tilman, ecologist at the University of Minnesota, suggests that " biofuels made from high-diversity mixtures of prairie plants can reduce global warming by removing carbon dioxide from the atmosphere.

Other variations include use of the past tense, referring to Goebbels as Doctor, Hitler's other ball being " on the wall ", mixtures of the variants above, and Hitler's life being " much simpler if he didn't have any at all ".

The literature contains many references on sintering dissimilar materials to produce solid / solid-phase compounds or solid / melt mixtures at the processing stage.

Due to the use of gas mixtures containing helium at extreme depths, the use of argon inflation for dry suits, or hot water suits become a necessity for diving deep in colder waters.

Some inks are eutectic mixtures, allowing inkjet printers to operate at lower temperatures.

Pyroclastic flows are fast-moving, avalanche-like, ground-hugging incandescent mixtures of hot volcanic debris, ash, and gases that can travel at speeds in excess of.