Decomposition Procedures in Inorganic Analysis

Šulcek, Z.; Povondra, P.; Doležal, J.; Langmyhr, F.J.

doi:10.1080/10408347708542694

Cited by 72 publications

(44 citation statements)

References 444 publications

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“…(i6). Silicon was determined by an atotnic absorption procedure after dissolution in hydrofluoric acid (17). The biopolymer cell wall compositions of these tobacco samples were determined by a slighdy modified version of our standard fractionation procedure (6) shown in Figure 1.…”

Section: Methodsmentioning

confidence: 99%

Analyses of Bright and Burley Tobacco Laminae and Stems

Bokelman

Ryan

1985

Beiträge Zur Tabakforschung International/Contributions to Tobacco Research

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SUMMARYOne sample each of aged uncased, cured Bright lamina, Bright stems, Burley lamina and Burley stems were examined by a variety of general analytical methods and then characterized by our standard fractionation procedure. These tobacco samples were chosen to be reasonably representative of the tobaccos used in current commercial cigll;l'ette productso Although for a given variety of tobacco the concentrations of chemical constituents may vary as a function of stalk position, cultural management, geographic origin or crop year, we believe that the following conclusions based on these samples are generally valid: {1) levels of ethanol solubles, total reducing sugars and starch are much higher in Bright than in Burley, [

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Section: Methodsmentioning

confidence: 99%

Analyses of Bright and Burley Tobacco Laminae and Stems

Bokelman

Ryan

1985

Beiträge Zur Tabakforschung International/Contributions to Tobacco Research

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“…Usualmente, as amostras são convertidas em soluções aquosas por meio de procedimentos clássicos por via seca, tais como, cinzas para materiais orgânicos, fusão para materiais inorgânicos refratários e por via úmida, digestão ou dissolução ácida em altas temperaturas para amostras orgânicas e inorgânicas, repectivamente [1][2][3] . Esses procedimentos apresentam características favoráveis e limitações que dependem, particularmente, do tipo de amostra, dos analitos e de suas concentrações.…”

Section: Introductionunclassified

Análise direta de sólidos por espectrometria de absorção atômica com atomização em forno de grafite: uma revisão

Nomura¹,

Silva²,

Oliveira³

2008

Quím. Nova

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“…CRM GBW07313 containing a high amount of SiO2 (53.86%) and Al2O3 (13.75% certified value) might contain some HF-insoluble silicates that can cause the slightly low recovery of Cu, Mn and Fe. According to Sulcek et al (1977), high aluminum silicates and polymorphous silicon dioxide are not dissolved in HF. 9 Another reason for the low recovery might be due to FAAS analytical errors.…”

Section: Crm Gbw07313mentioning

confidence: 99%

“…According to Sulcek et al (1977), high aluminum silicates and polymorphous silicon dioxide are not dissolved in HF. 9 Another reason for the low recovery might be due to FAAS analytical errors. In order to verify this idea, the interferences of Si and Al on Mn, Fe and Cu absorption were examined.…”

Section: Crm Gbw07313mentioning

confidence: 99%

Comparison of the Acid Combinations in Microwave-assisted Digestion of Marine Sediments for Heavy Metal Analyses

Sakamoto

2005

ANAL. SCI.

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Sediments as a tool for monitoring contamination by heavy metals in the environment has long been considered. It is therefore a necessity to produce reliable data for such purposes. Microwave-assisted acid dissolution has proved to be a suitable method for digesting complex matrices, such as sediments. However, due to the infancy of the technique, the procedures are numerous and varied in both the reagents used and microwave conditions. In this study, the efficiency of two recommended acid mixtures, a HNO3-HF mixture and an aqua regia-HF mixture, under the same microwave digestion conditions were compared using certified reference materials. It was observed that the HNO3-HF mixture showed better efficiency than the aqua regia-HF mixture in most of the heavy metals analyzed in all certified reference materials used.

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Decomposition Procedures in Inorganic Analysis

Cited by 72 publications

References 444 publications

Analyses of Bright and Burley Tobacco Laminae and Stems

Analyses of Bright and Burley Tobacco Laminae and Stems

Análise direta de sólidos por espectrometria de absorção atômica com atomização em forno de grafite: uma revisão

Comparison of the Acid Combinations in Microwave-assisted Digestion of Marine Sediments for Heavy Metal Analyses

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