• Title, Summary, Keyword: aluminium phosphide

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Monitoring of Aluminium Phosphide Residues in Wheat and Wheat Flour (밀과 밀가루 중 알루미늄포스파이드 잔류량 모니터링)

  • Choi, Yong-Hoon;Yoon, Sang-Hyeon;Hong, Hye-Mi;Kang, Yun-Sook;Chae, Kab-Ryong;Lee, Jong-Ok
    • Korean Journal of Food Science and Technology
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    • v.37 no.4
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    • pp.532-536
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    • 2005
  • GC-NPD analysis was performed on residues of aluminium phosphide in raw wheat and wheat products by trapping gaseous phosphine in the headspace of vessel. In Australian wheat, over 95% of samples were detected below 1 ppb, considered as safe level, whereas in American wheat, about 70% of 58 samples were detected within 1-10 ppb with 4 showing over 10 ppb. About 14-22% phosphine residues of raw wheat were retained after milling process. Wheat samples of same origin showed significant varying levels of phosphine.

Damage of Garlic Gall Mite, Aceria tulipae(Keifer), on Stored Garlic and its Chemical Control (저장마늘의 마늘혹응애 피해와 화학적 방제)

  • 나승용;조명래;전응용;오대근;박권우
    • Korean journal of applied entomology
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    • v.37 no.1
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    • pp.81-89
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    • 1998
  • In a survey on the pests of stored garlic, an unrecorded gall mite in Korea was found to damage on garlic surface making stripe feeding injuries. The mite was identified as Aceria tulipae (Keifer) 1938, based on the morphological characteristics. Light microscopic and SEM observations on garlics fed by A. tulipae revealed that there was no gall formation by feeding but there was only surface damage symptom. The damaged garlic surface showed symptom of losing gloss in the early stage and the feeding traces under dissecting microscope. Brown stripes appeared in the middle stage of damage and the whole scale turned to dark brown and shrank in the later stage. When the mite infested garlics were fumigated with 3 g/m3 aluminium phosphide for 72 hours in airtight plastic boxes (1 m x 1 m x 1 m), the mortalities of mite were over 90% for Namdo garlics.

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The Effect of InGaAlP Laser Transcutaneous Blood Irradiation on Heart Rate Variability in Healthy Adults (InGaAlP 레이저 경피혈액조사가 정상성인의 심박변이도에 미치는 영향)

  • Lee, Tae-Ho;Yeo, Jin-Ju;Seol, Hyun;Jang, In-Soo
    • The Journal of Internal Korean Medicine
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    • v.25 no.4
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    • pp.25-33
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    • 2004
  • Objective : The effects of Indium-Gallium-Aluminium-Phosphide(InGaAlP) laser transcutaneous irradiation on heart rate variability(HRV) in healthy adults are investigated with power spectrum analysis(PSA) of HRV. Methods : The control group consisted of 20 healthy volunteers (10 men, 10 women). The experiment was divided into 5 different periods, the pre-1st laser period(10 minutes), the 1st laser period(30 minutes), the post-1st laser period(5 minutes), the 2nd laser period( 30 minutes) and the post-2nd laser period(30 minutes). HRV was measured for 5 minutes at the pre-1 st laser period, the post-l st laser period and the post-2nd laser period. The laser period is the period in which InGaAlP laser transcutaneous Irradiation treatment occurs. Results : 1. SDNN of volunteers at post-1st laser period and post-2nd laser period significantly increased compared with that of the pre- 1 st laser period. 2, Ln(VLF) at post-I st laser period significantly increased compared with that of pre-1st laser period, while Ln(HF) at post-2nd laser period significantly decreased compared with those of pre- I st laser period and post-1st laser period, 3. Ln(TP) at post-1st laser period and post-2nd laser period significantly increased compared with that of pre-1st laser period, 4, LF/HF Ratio at post-2nd laser period significantly increased compared with those of pre-1st laser period and post-1st laser period. But the other variables did not significantly change. Conclusions : The results suggest that InGaAlp laser transcutaneous Irradiation in healthy adults is associated with the autonomic nervous systems. Further study is needed for investigating the effects of laser irradiation on autonomic nervous systems.

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