Determination of 2-methyl-iso-borneol and geosminin drinking water by mass fragmentography
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چکیده
منابع مشابه
Determination of some L-3,4-dihydroxyphenylalanine and dopamine metabolites in urine by means of mass fragmentography.
We describe a mass-fragmentographic method for determination in urine of the following metabolites of L-3,4-dihydroxyphenylalanine and dopamine: vanillactic acid, 3,4-dihydroxyphenylacetic acid, 3-methoxy-4-hydroxyphenylethanol, and 3,4-dihydroxyphenylethanol. Deuterated analogs were used as internal standards. The method is fast, reproducible, sensitive, and selective, and does not require the...
متن کاملDetermination of pipecolic acid in urine and plasma by isotope dilution mass fragmentography.
A capillary gas chromatographic method with mass spectrometric detection for the determination of pipecolic acid in urine and plasma (or serum) has been developed. Using a quantification based on stable isotope dilution mass fragmentography the concentration of pipecolic acid was determined in urines of 34 healthy children and 8 patients with Zellweger's syndrome. The urinary pipecolic acid exc...
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تشکیل کمپلکس های tarبا یون های لانتانیم, ایتریم و توریم در دمای 25 درجه، قدرت یونی ثابت 0.1 مولار و در ph ثابت در مخلوط حلال های اتانول – آب و استونیتریل – آب با استفاده از روش های اسپکتروفوتومتری مورد بحث و بررسی قرار گرفت. داده های اسپکتروفوتومتری با استفاده از نرم افزار squad پردازش شدند تا ثابت های تشکیل کمپلکس اندیکاتور – فلز را محاسبه کند. نتایج نشان می دهد که درصد حلال آلی در مخلوط حلال ...
15 صفحه اولDetermination of Pentachlorophenol in Drinking Water
Este trabalho relata um método envolvendo derivação in situ e extração para determinação de resíduos de PCP em amostras de água. O derivado acetilado de PCP é analisado por cromatografia a gás com detector por captura de elétrons. O limite de detecção do método é de 1 μg/L e sua eficiência é demonstrada pelos valores médios de recuperação (78-108%) estudados em três níveis de fortificação (2; 1...
متن کاملReversed-phase liquid chromatography and gas chromatography/mass fragmentography compared for determination of tricyclic antidepressant drugs.
We compare measurement of the tricyclic antidepressants desipramine, imipramine, nortryptaline, and amitryptaline by reversed-phase "high-performance" liquid chromatography and by gas chromatography/mass fragmentography. The liquid-chromatographic procedure does not require ion-pairing reagents, and involves detection at 215 nm. The within-day and between-day CVs for this method were less than ...
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1983
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.32.8_464