RU99125090A - METHOD FOR DETERMINING DRY RESIDUAL IN LIQUID - Google Patents

METHOD FOR DETERMINING DRY RESIDUAL IN LIQUID

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Publication number
RU99125090A
RU99125090A RU99125090/28A RU99125090A RU99125090A RU 99125090 A RU99125090 A RU 99125090A RU 99125090/28 A RU99125090/28 A RU 99125090/28A RU 99125090 A RU99125090 A RU 99125090A RU 99125090 A RU99125090 A RU 99125090A
Authority
RU
Russia
Prior art keywords
liquid
frequency
sample
change
quartz
Prior art date
Application number
RU99125090/28A
Other languages
Russian (ru)
Other versions
RU2176077C2 (en
Inventor
Оксана Анатольевна Федяева
Елена Геннадьевна Пошелюжная
Original Assignee
Омский государственный технический университет
Filing date
Publication date
Application filed by Омский государственный технический университет filed Critical Омский государственный технический университет
Priority to RU99125090/28A priority Critical patent/RU2176077C2/en
Priority claimed from RU99125090/28A external-priority patent/RU2176077C2/en
Publication of RU99125090A publication Critical patent/RU99125090A/en
Application granted granted Critical
Publication of RU2176077C2 publication Critical patent/RU2176077C2/en

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Claims (1)

Способ определения массы сухого остатка в жидкости, по которому жидкость предварительно фильтруют, берут ее пробу и нагревают до полного испарения, отличающийся тем, что пробу жидкости берут в количестве 1 - 3 мкл, наносят на пьезокварцевый резонатор АТ-среза с частотой не менее 5 МГц, определяют изменение частоты пьезокварцевого резонатора Δf1 и Δf2, соответственно до испарения жидкости и после него, а вес пробы и сухого остатка в ней определяют по формулам:
mпробы = ρ•N•S•Δf1/f 2 0 , mсух.остатка = ρ•N•S•Δf2/f 2 0 ,
где ρ - плотность кварца (2650 кг/м3);
N - частотный коэффициент кварцевой пластины АТ-среза (1680 кГц • мм);
S - геометрическая поверхность электродов;
f0 - собственная частота пьезокварцевого резонатора;
Δf1 - изменение частоты пьезокварцевого резонатора после нанесения на него пробы жидкости;
Δf2 - изменение частоты пьезокварцевого резонатора после полного испарения жидкости.The method of determining the mass of dry residue in a liquid, by which the liquid is pre-filtered, take its sample and heat until complete evaporation, characterized in that the liquid sample is taken in an amount of 1 to 3 μl, applied to an AT-cut piezoelectric crystal resonator with a frequency of at least 5 MHz , determine the change in the frequency of the piezoelectric quartz resonator Δf 1 and Δf 2 , respectively, before and after evaporation of the liquid, and the weight of the sample and the dry residue in it is determined by the formulas:
m samples = ρ • N • S • Δf 1 / f 2 0 , m dry residue = ρ • N • S • Δf 2 / f 2 0 ,
where ρ is the density of quartz (2650 kg / m 3 );
N is the frequency coefficient of the AT-cut quartz plate (1680 kHz • mm);
S is the geometric surface of the electrodes;
f 0 is the natural frequency of the piezoelectric crystal;
Δf 1 - change in the frequency of the piezoelectric crystal resonator after applying a liquid sample to it;
Δf 2 - change in the frequency of the piezoelectric quartz resonator after complete evaporation of the liquid.
RU99125090/28A 1999-11-29 1999-11-29 Method of determining solid residue in a liquid RU2176077C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU99125090/28A RU2176077C2 (en) 1999-11-29 1999-11-29 Method of determining solid residue in a liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU99125090/28A RU2176077C2 (en) 1999-11-29 1999-11-29 Method of determining solid residue in a liquid

Publications (2)

Publication Number Publication Date
RU99125090A true RU99125090A (en) 2001-09-10
RU2176077C2 RU2176077C2 (en) 2001-11-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU99125090/28A RU2176077C2 (en) 1999-11-29 1999-11-29 Method of determining solid residue in a liquid

Country Status (1)

Country Link
RU (1) RU2176077C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2680163C1 (en) * 2017-11-27 2019-02-18 Татьяна Анатольевна Кучменко Non-volatile compounds content in non-aqueous media determining method
CN114137122A (en) * 2021-12-01 2022-03-04 青岛海关技术中心 Method for rapidly identifying component content of full-sucrose syrup on customs inspection site

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